Garudapurana 3.19.41

3.19.41

tantroktapūjā durlabhā vai murārernāmagraho durlabhaścava viṣṇoḥ /
suvaiṣṇavānāṃ pujanaṃ durlabhaṃ hi sadvaiṣṇavānāṃ bhāṣaṇaṃ durlabhaṃ ca //

Worship of Murāri as taught in the Tantras is rare indeed, and uttering Viṣṇu's name is rare; / worship of good Vaiṣṇavas is indeed rare, and conversation with true Vaiṣṇavas is rare.