Mudgalapurana 4.20.4

4.20.4

mudgala uvāca |
evaṃ pṛṣṭo mahāyogī vasiṣṭhastamuvāca ha |
tacchṛṇuṣva prajānātha śravaṇānandadāyakam ||

Mudgala said:
Having been questioned thus, the great yogin Vasiṣṭha said to him: / hear that, O lord of subjects, which gives joy to the hearing.