Skandapurana 1.4.31.63

1.4.31.63

tato maheśvaraḥ prītaḥ prāha skaṃdasya śrṛṇvataḥ..
caturdaśyāṃ kṛṣṇapakṣe madhau caivātra yo naraḥ..
snātvopoṣya samabhyarcya kapāleśvaramīśvarīm.. 33.63 ..

Then Maheśvara, pleased, spoke while Skanda listened: / "The human who, on the fourteenth day of the dark fortnight in Madhu, / having bathed, fasted, and thoroughly worshipped Kapāleśvara and the goddess,