Skandapurana 2.7.0.p1

2.7.0.p1

adhyāyaḥ 1 sūtaśaunakasaṃvāde vaiṣṇavādidharmajijñāsoraṃbarīṣasya nāradaṃ prati praśnaḥ, nāradakṛtavaiśākhamāsapraśaṃsā, vaiśākhasnānamahimā ca.

Chapter 1: In the dialogue between Sūta and Śaunaka, the inquiry of King Ambarīṣa to Nārada desiring to know the Vaiṣṇava duties and other virtues; Nārada's praise of the month of Vaiśākha, and the greatness of the ritual ablution in Vaiśākha.