Skandapurana 2.7.0.p13

2.7.0.p13

adhyāyaḥ 13 vaiśākhamāhātmyakathanapūrvakaṃ brahmaṇā yamasya samādhānakaraṇam, tathāpi khedayuktena yamena sākaṃ brahmaṇo viṣṇusamīpe gamanam, viṣṇunā yamāya varapradānam, tatra vaiśākhadharmāṇāṃ praśaṃsā

Chapter 13: Brahmā comforts Yama through explaining the greatness of Vaiśākha; nevertheless, Brahmā goes to Viṣṇu along with the grieving Yama; Viṣṇu grants a boon to Yama; praise of the religious duties of Vaiśākha therein.