Aṣṭakā-Śrāddha Vidhi and Dāna-Praśaṃsā
Observances in the Dark Fortnight and Praise of Giving
क्षिप्रमाप्नोति हि श्रेयः परत्रेह च मोदते / पितरः पर्वकालेषु तिथिकालेषु देवताः
kṣipramāpnoti hi śreyaḥ paratreha ca modate / pitaraḥ parvakāleṣu tithikāleṣu devatāḥ
He swiftly attains blessed good and rejoices both here and hereafter; at parva seasons and on tithi occasions, the Pitṛs themselves are the deities to be worshipped.