Srimad Bhagavatam Canto 10, Chapter 84, Text 53

SB 10.84.53

patni-samyajavabhrthyais
 caritva te maharsayah
sasnu rama-hrade vipra
 yajamana-purah-sarah
 
Translation: 
 
After supervising the patni-samyaja and avabhrthya rituals, the great brahmana sages bathed in Lord Parasurama’s lake with the sponsor of the sacrifice, Vasudeva, who led them.
Srimad Bhagavatam Canto 10, Chapter 84, Text 52
Srimad Bhagavatam Canto 10, Chapter 84, Text 54