Skandapurana 16.310.2

16.310.2

taṃ dṛṣṭvā pūjayitvā ca muktaḥ syātsarvakilbiṣaiḥ...
somavāre tvamāvāsyā tatraiva bahupuṇyadā ..
viprāṇāṃ bhojanaṃ deyaṃ tatra puṇya phalepsubhiḥ .. 2 ..

Having seen and worshipped him, one is freed from all sins. / The new moon day on a Monday brings great merit there indeed. / Food should be given to brahmins there by those who wish for meritorious fruits.