The departed Manes of that man who indulges in sexual intercourse on the day he performs a Shraddha or eats at a Shraddha, have to lie for a whole month on his vital seed.
श्राद्धं दत्त्वा च भुक्त्वा च पुरुषो यःस्त्रियं व्रजेत्। पितरस्तस्य तं मासं तस्मिन् रेतसि शेरते।॥