Kauṣītaki (Śāṅkhāyana) Brāhmaṇa 5.7.17

5.7.17

atha yad ṛṣabham dadāti /

has been given. In that he sacrifices at the end to Mahendra, (it is because) the leader occupies the end; therefore at the end he sacrifices to him. In that there is (a cake) on one potsherd for Viçvakarman, and he yonder that gives heat is Viçvakarman, verily thus he delights him. In that he gives a bull, (it is) because the sacrificial rite is Indra's.