Bhagavatapurana 10.74.15

10.74.15

rājānaś ca samāhūtā rāja-patnyaś ca sarvaśaḥ /
rājasūyaṃ samīyuḥ sma rājñaḥ pāṇḍu-sutasya vai /
menire kṛṣṇa-bhaktasya sūpapannam avismitāḥ //

13. to 15. Indeed all the utensils were of gold as they were in Varuna's sacrifice in ancient times, Indra and other protectors of the cardinal points along with Brahma and Rudra and with their retinue, Siddhas, Gandharvas, Vidyadharas, the great sages, Yakshas, Rakshasas, birds, Kinnaras, Charanas, princes and their consorts, all being invited, went to the Rajasuya of king Yudhistira, son of Pandu.

16. Without any feeling of surprise, they all considered this quite natural and appropriate to the devotee of Krishna. The priests brilliant like the gods, conducted for the king the sacrifice of Rajasuya according to Sastra as the gods did for Varuna.