Shanti Parva 243.10

The house-holder, should every day eat Vighasa and ambrosia. Mixed with clarified butter, the remains of the food, which is offered in sacrifices, make ambrosia. That householder who eats after having fed his servants, is said to eat Vighasa. The food, which remains after the servants have been fed, is called Vighasa, and that which is left after the presentation of sacrificial offerings, is called Amrita.