Mbh 12.60.2e

[190] For this reason, the sacrifice that consists in devotion is laid down for all the classes.[191] The Brahmana is the foremost of gods. It is not true that they that belong to that order do not perform the sacrifices of the other orders. The fire called Vitana, though procured from Vaisyas and inspired with mantras, is still inferior.[192] The Brahmana is the performer of the sacrifices of the three other orders. For this reason all the four orders are holy. All the orders bear towards one another to relation of consanguinity, through the intermediate classes. They have all sprung from Brahmanas. In ascertaining (the priority or subsequence of men in respect of their creation) it will appear that amongst all the orders the Brahmana was created first. Originally Saman was one, Yajus was one, and Rich was one.[193] In this connection, persons conversant with ancient histories cite a verse, O king, sung in praise of sacrifice by the Vaikhanasa Munis on the occasion of performing a sacrifice of theirs. Before or after sunrise a person of subdued senses, with heart filled with devotion, poureth libations on the (sacrificial) fire according to the ordinance. Devotion is a mighty agent. With regard to homas again, that variety which is called skanna is the initial one, while that which is called askanna is the last (but foremost in point of merit). Sacrifices are multifarious. Their rites and fruits again are multifarious. The Brahmana possessed of devotion who, endued with scriptural learning, who is acquainted with them all, is competent to perform sacrifices. That person who desires to perform a sacrifice is regarded as righteous even if he happens to be a thief, a sinner, or the worst of sinners. The Rishis applaud such a man. Without doubt they are right. This then is the conclusion that all the orders should always and by every means in their power perform sacrifices. There is nothing in the three worlds equal to sacrifice.