Mbh 3.124.1a

“Lomasa said, ‘Now the news came to Saryati that Chyavana had been turned into a youth. And well pleased he came, accompanied by his troops, to the hermitage of the son of Bhrigu. And he saw Chyavana and Sukanya, like two children sprung from celestials, and his joy and that of his wife were as great as if the king had conquered the entire world. And the ruler of earth together with his wife was received honourably by that saint. And the king seated himself near the ascetic, and entered into a delightful conversation of an auspicious kind. Then, O king, the son of Bhrigu spake to the king these words of a soothing nature: ‘I shall, O king, officiate at a religious ceremony to be performed by thee: let the requisite articles, therefore, be procured.’ Thereat, that protector of earth Saryati, experienced the very height of joy, and O great king, he expressed his approbation of the proposal made by Chyavana. And on an auspicious day, suitable for the commencement of a sacrificial ceremony, Saryati ordered the erection of a sacrificial shrine of an excellent description and splendidly furnished with all desirable things. There Chyavana, the son of Bhrigu, officiated for the king as his priest. Now listen to me relating the wonderful events which happened at that spot. Chyavana took up a quantity of the Soma juice, in order that he might offer the same to the Aswins, who were physicians to the celestials. And while the saint was taking up the intended offering for those celestial twins, Indra pronounced his interdiction, saying, These Aswins both of them in my opinion have no right to receive an offering of the Soma juice.’ They are the physicians of the celestials in heaven,--this vocation of theirs hath disentitled them (in the matter of Soma). Thereupon Chyavana said, ‘These two are of mighty enterprise, possessed of mighty souls, and uncommonly endued with beauty and grace.