Matsya Purana 246.41

246.41

athāsurapatiṃ prahvaṃ dṛṣṭvā munivarāṃśca tān.
devadevapatiḥ sākṣī viṣṇurvāmana rūpadhṛk .. 246.41 ..

Lord Vāmana the witness of all, the Lord of the Deva of the Devas seeing the demon king Bali so meek and mild and looking at the seers assembled there, began to praise sacrificial Agni, Yajamāna, Ṛtvijas, sacrificial articles and the courtiers engaged in the performance of sacrifices—41-42