The first emissary
According to Yudhishthira’s opinion, Drupada sent his Purohit to the Kurus. Drupada said,
“Of beings those that are endowed with life are superior. Of living beings those that are endowed with intelligence are superior. Of intelligent creatures men are superior. Of men the twice-born are superior. Of the twice-born, students of the Veda are superior. Of students of the Veda those of cultured understanding are superior. Of cultured men practical persons are superior. And finally, of practical men those knowing the Supreme Being are superior. You, it seems to me, are at the very top of those that are of cultured understanding. You are distinguished both for age and learning. You are equal in intellect to either Shukra or Brihaspati, the son of Angiras. You know what kind of man the chief of the Kuru race is, and what kind of man also is Yudhishthira, the son of Kunti. It was with Dhritarashtra's knowledge that the Pandavas were-deceived by their opponents. Though instructed by Vidura he still follows his son! Shakuni advisedly challenged Yudhishthira to a gambling match although the latter was unskilled in gambling while the former was an adept in it. Unskilled in play, Yudhishthira was guileless and firm in following the rules of the military order. Having thus cheated the virtuous king Yudhishthira, they will, by no means, voluntarily yield up the kingdom. If you speak words of righteousness unto Dhritarashtra, you will certainly gain the hearts of his fighting men. Vidura also will make use of those words of yours and will thus alienate the hearts of Bhishma, and Drona, and Kripa, and others. When the officers of state are alienated and fighting men are backward, the task of the enemy will be to gain back their hearts. In the meantime, the Pandavas will, with ease and with their whole hearts, address themselves in preparing the army and in collecting stores. When the enemy's adherents are estranged, and while you are hanging about them, they will surely not be able to make adequate preparations for war. This course seems expedient in this wise.
On your meeting with Dhritarashtra it is possible that Dhritarashtra may do what you say. And as you are virtuous, you must therefore act virtuously towards them. To the compassionate, you must descant upon the various hardships that the Pandavas have endured. You must estrange the hearts of the aged persons by discoursing upon the family usages which were followed by their forefathers. I do not entertain the slightest doubt in this matter. Nor need you be apprehensive of any danger from them, for you are a Brahmana, versed in the Vedas; and you are going there as an ambassador, and more specially, you are an aged man. Therefore, I ask you to set out without delay towards the Kauravas with the object of promoting the interests of the Pandavas, timing your departure under the (astrological) combination called Pushya and at that part of the day called Jaya.”
Thus instructed by the magnanimous Drupada, the virtuous priest set out for Hastinapura (the city called after the elephant). That learned man, well-versed in the principles of the science of politics, started with a following of disciples towards the Kurus for the sake of promoting the welfare of Pandu's sons. Duryodhana’s army, arranged, was beheld by the priest who had been sent by the king of the Panchalas to the Kurus.
Then Drupada's priest, having approached the Kaurava chief, was honoured by Dhritarashtra as also by Bhishma and Vidura. Having first told the news of the welfare of the Pandavas, he enquired about the welfare of the Kauravas. He spoke the following words in the midst of all the leaders of Duryodhana's army,
“The eternal duties of kings are known to you all. But though known, I shall yet recite them as an introduction to what I am going to say. Both Dhritarashtra and Pandu are known to be sons of the same father. There is no doubt that the share of each to the paternal wealth should be equal. The sons of Dhritarashtra obtained the paternal wealth. Why did not the sons of Pandu at all receive their paternal portion? You are aware how formerly the sons of Pandu did not receive their paternal property which was all usurped by Dhritarashtra's sons. The latter endeavoured in various ways to remove the sons of Pandu from their path by employment even of murderous contrivances; but as their destined terms of life had not wholly run out, the sons of Pandu could not be sent to the abode of Yama. Then again, when those high-souled princes had carved out a kingdom by their own strength, the mean-minded sons of Dhritarashtra, aided by Subala's son, robbed them of it by deceit. This Dhritarashtra gave his sanction even to that act as has been usual with him. For thirteen years they were then sent to sojourn in the great wilderness. In the council-hall, they had also been subjected to indignities of various kinds, along with their wife, valiant though they were. And great also were the sufferings that they had to endure in the woods. Those virtuous princes had also to endure unspeakable woes in the city of Virata, such as are endured only by vicious men when their souls transmigrate into the forms of inferior beings.
You best of Kuru's race, overlooking all these injuries of yore they desire nothing but a peaceful settlement with the Kurus! Remembering their behaviour, and that of Duryodhana also, the latter's friends should entreat him to consent to peace! The heroic sons of Pandu are not eager for war with the Kurus. They desire to get back their own share without involving the world in ruin.
If Dhritarashtra's son assigns a reason in favour of war, that can never be a proper reason. The sons of Pandu are more powerful. Seven Akshauhinis of troops have been collected on behalf of Yudhishthira, all eager to fight with the Kurus, and they are now awaiting his word of command. Others there are tigers among men, equal in might to a thousand Akshauhinis, such as Satyaki and Bhimasena, and the twin brothers of mighty strength. It is true that these eleven divisions of troops are arrayed on one side, but these are balanced on the other by the mighty-armed Dhananjaya of manifold form. As Kiritin exceeds in strength even all these troops together, so also does Vasudeva's son of great effulgence and powerful intellect. Who is there that would fight, in view of the magnitude of the opposing force, the valour of Arjuna, and the wisdom of Krishna? Therefore, I ask you to give back what should be given, as dictated by morality and compact. Do not let the opportunity pass!”
Having heard his words, Bhishma, senior in wisdom, and endued with great effulgence, paid honours to him, and then spoke words suitable to the occasion. And he said,
“How fortunate that they are all well, with Krishna! How fortunate that they have procured aid, and that they are inclined to a virtuous course! How fortunate that those scions of Kuru's race desire peace with their cousins! There is no doubt that what you have said is true. Your words, however, are exceedingly sharp, the reason, I suppose, being that you are a Brahmana. No doubt, the sons of Pandu were much harassed both here and in woods. No doubt, by law they are entitled to get all the property of their father. Arjuna, the son of Pritha, is strong trained in weapons, and is a great car-warrior. Who, in sooth, can withstand in battle Dhananjaya the son of Pandu. Even the wielder himself of the thunderbolt cannot,--other bowmen are hardly worth mention. My belief is that he is a match for all the three worlds!”
While Bhishma was thus speaking, Karna wrathfully and insolently interrupted his words, and looking at Duryodhana said,
“There is no creature in the world, O Brahmana, who is not informed of all these facts. What is the good of repeating them again and again? On behalf of Duryodhana, Shakuni formerly won in game of dice. Yudhishthira, the son of Pandu went to the woods according to a stipulation. He is now paying no regard to that stipulation, but confident of aid from the Matsyas and Panchalas, he wishes to get back his ancestral throne. O learned man, Duryodhana would not yield even a single foot of land if you appeal to his fears, but if justice requires, he would give up the whole earth even to a foe. If they wish to get back their ancestral throne, they should pass the specified period of time in the forest as had been stipulated. Afterwards let them live as the dependants of Duryodhana, safe and sound. From dull-headedness, however, let them not turn their mind towards an absolutely unrighteous course. If, nevertheless, abandoning the path of virtue, they desire war, then when they encounter in battle these praise-worthy Kurus, they will remember these my words.”
Bhishma said,
“What is the use of your talking, O Radha's son? You should remember that occasion when Pritha's son, single-handed, over-powered in battle six car-warriors. If we do not act as this Brahmana has said, to be sure, we shall be all slain by him in battle!”
Then Dhritarashtra pacified Bhishma with words of entreaty, rebuked the son of Radha, and spoke the following words,
“What Bhishma, Shantanu’s son, has said is salutary for us, as also for the Pandavas, and likewise for the whole universe. I shall, however, after deliberation, send Sanjaya to the sons of Pandu. So you need not wait. Go to the son of Pandu this very day.”
The Kaurava chief then honoured Drupada's priest and sent him back to the Pandavas.
What was the name of King Dripada”s Purohit
The Critical Edition of Mahabharata does not seem to mention the name of Drupada’s Purohit, although the Purohit was the first Emissary to be sent from the Pandavas to Dhritarashtra (Udyoga Parva, Senodyoga Parva).
The two Brahmin brothers who assisted Drupada in the birth of a son, Dhrishtadyumna, who would kill Drona, were named Yaja and Upayaja (Adi Parva, Chaitraratha Parva).