Grihya Sutras, Part 1 (SBE29): Sâṅkhâyana-Grihya-Sûtra: I, 2
KHANDA 2.
1. At the end of the sacrificial acts (follows) the distribution of food to Brâhmanas.
2. Voice, (pleasantness of) form, age, learning, moral character, (right) conduct are the qualities (required in the Brâhmanas who are to be invited thereto).
