Mbh 12.37.2d

The food provided by a person selected (for receiving gifts) at a certain stage of a sacrifice, by one who does not enjoy his wealth or make any gifts, that provided by one who sells Soma, or one who is a shoe-maker, by an unchaste woman, by a washerman, by a physician, by persons serving as watchmen, by a multitude of persons, by one who is pointed at by a whole village, by one deriving his support from keep of dancing girls, by persons wedding before their elder brothers are wedded, by professional panegyrists and bards, and by those that are gamblers, the food also which is brought with the left hand or which is stale, the food which is mixed with alcohol, the food a portion of which has been already tasted, and the food that forms the remnant of a feast, should not be taken (by a Brahmana). Cakes, sugarcanes, potherbs, and rice boiled in sugared milk, if they have lost their relish, should not be taken. The powder of fried barley and of other kinds of fried grain, mixed with curds, if become stale with age, should not be taken. Rice boiled in sugared milk, food mixed with the tila seed, meat, and cakes, that have not been dedicated to the gods, should not be taken by Brahmanas leading a domestic mode of life. Having first gratified the gods, Rishis, guests, Pitris, and the household deities, a Brahmana leading a domestic mode of life should then take his food. A householder by living thus in his own house becomes like a person of the Bhikshu order that has renounced the world. A man of such behaviour, living with his wives in domesticity, earns great religious merit. No one should make a gift for the sake of acquiring fame, or from fear (of censure and the like) or unto a benefactor.