Mbh 13.60.2b

The merit that flows from properly pouring libations into the sacred fire every morning and evening is won by the person who makes gifts unto a Brahmana endued with learning, with the Vedas and with high and excellent vows. Thou shouldst, O son of Kunti, invite those foremost of Brahmanas who are cleansed by learning and the Vedas and vows, who live in independence, whose Vedic studies and penances are hidden without being proclaimed from the house-top, and who are observant of excellent vows, and honour them with gifts of well-constructed and delightful houses equipped with servitors and robes and furniture, and with all other articles of pleasure and enjoyment. Conversant with all duties and possessed of minute vision, those foremost of Brahmanas, O Yudhishthira, may accept the gifts offered to them with devotion and respect, thinking that they should not refuse and disappoint the giver. Thou shouldst invite those Brahmanas whose wives wait for their return like tillers in expectation of rain. Having fed them well thou shouldst make gifts of additional food unto them so that upon their return home their expectant wives might be able to distribute that food among their children that had clamoured for food but that had been pacified with promises Brahmacharins of restrained senses, O son, by eating at one's house in the forenoon, cause the three sacrificial fires to be gratified with the householder at whose house they eat. Let the sacrifice of gift proceed in thy house at midday, O son, and do thou also give away kine and gold and robes (unto thy guests after feeding them well). By conducting thyself, in this way, thou art sure to gratify the chief of the celestials himself. That would constitute thy third sacrifice, O Yudhishthira, in which offerings are made unto the deities, the Pitris, and the Brahmanas. By such sacrifice thou art sure to gratify the Viswedevas.