The Great Epic of the Bhārata dynasty 3.4.9

3.4.9

purohitapurogāśca tithinakṣatraparvasu |
yajñiyārthāḥ pravartante vidhimantrapramāṇataḥ || 9 ||

'And having thus obtained the boon from the maker of day, the son of Pandu, himself as resplendent as that celestial, began to entertain the Brahmanas agreeably to their wishes. And obedient to their priest, the sons of Pritha, on auspicious lunar days and constellations and conjunctions, performed sacrifices according to the ordinance, the scriptures, and the Mantras. After the sacrifices, the sons of Pandu, blessed by the auspicious rites performed by Dhaumya and accompanied by him, and surrounded also by the Brahmanas set out for the woods of Kamyaka.'"