ii. 3. 12.

Prajapati led the horse to Varuna, it went to its own deity, he was afflicted; he saw this (offering) to Varuna on four potsherds, he offered it; then indeed was he set free from Varuna's noose. Varuna seizes him who accepts the horse. As many horses as he accepts, so many (offerings) to Varuna should he offer; verily he has recourse to Varuna with his own share; verily he frees him from Varuna's noose [1]. (The offerings) are on four potsherds, for the horse has four feet; (verily they serve) for prosperity. He should offer an extra one; whatever (horse) he is going to accept or whatever (horse) he has overlooked, from that noose of Varuna is he set free. If he is going to accept another, he should offer in supplement an offering to Surya, on one potsherd; verily he makes yonder sun to rise. He goes to the waters as the final bath, Varuna is in the waters; verily straightway he appeases Varuna. After his return he should offer an oblation to Apam Napat; the horse has its birthplace in the waters; verily he makes him go to his own birthplace; appeased he attends on him.