पितामहो वा तत्श्राद्धं भुञ्जीतैत्यब्रवीन् मनुः । कामं वा समनुज्ञातः स्वयमेव समाचरेत् ॥ २२२ ॥
Manu has declared that either the grandfather may eat at that Sraddha (as a guest), or (the grandson) having received permission, may perform it, as he desires.
Having poured water mixed with sesamum, in which a blade of Kusa grass has been placed, into the hands of the (guests), he shall give (to each) that (above-mentioned) portion of the cake, saying, ’To those, Svadha!’
But carrying (the vessel) filled with food with both hands, the (sacrificer) himself shall gently place it before the Brahmanas, meditating on the manes.