Page 109.

“Now about the office of a Purohita (house priest). The gods do not eat the food offered by a king, who has no house-priest (Purohita). Thence the king even when (not) intending to bring a sacrifice, should appoint a Bráhman to the office of house-priest.” Haug's Autareya Bráhmanam. Vol. II. p. 528.