Bhagavatapurana 10.75.2

10.75.2

duryodhanaṃ varjayitvā rājānaḥ sarṣayaḥ surāḥ /
iti śrutaṃ no bhagavaṃs tatra kāraṇam ucyatām //

1. & 2. The king said:— At the splendid success in the Rajasuya of Ajatasatru all the kings who had met there were rejoiced, O sage, — all the kings except Duryodhana, Rishis and the gods, so we are told; O worshipful one, be pleased to tell us of its cause.