Mbh 3.199.4a

“Markandeya said, ‘By Japa,[53] and Mantras,[54] and Homa[55] and the study of the Vedas, the Brahmanas construct a Vedic boat[56] wherewith they save both others and themselves. The gods themselves are pleased with that man who gratifieth the Brahmanas. Indeed, a man may attain heaven at the command of a Brahmana. Thou wilt, O king, without doubt ascend to regions of everlasting bliss, in consequence of thy worship of the Pitris and the gods, and thy reverence for the Brahmanas, even though thy body is filled with phlegmatic humours and withal so dull and inert! He that desires virtue and heaven should adore the Brahmanas. One should feed Brahmanas with care on occasions of Sraddhas, although those among them that are cursed or fallen should be excluded. They also should be carefully excluded that are either excessively fair or excessively black, that have diseased nails, that are lepers, that are deceitful, that are born in bastardy of widows or of women having husbands alive; and they also that support themselves by the profession of arms. That Sraddha which is censurable, consumeth the performer thereof like fire consuming fuel. If they that are to be employed in Sraddhas happen to be dumb, blind, or deaf, care should be taken to employ them along with Brahmanas conversant with the Vedas. O Yudhishthira, listen now unto whom thou shouldst give. He that knoweth all the Vedas should give only to that able Brahmana who is competent to rescue both the giver and himself, for he, indeed, is to be regarded as able who can rescue both the giver and himself. O son of Pritha, the sacred fires do not receive such gratification from libations of clarified butter, from offerings of flowers and sandal and other perfumed pastes as from the entertainment of guests. Therefore, do thou strive to entertain guests, O son of Pandu!