सहपिण्डक्रियायां तु कृतायामस्य धर्मतः । अनयैवावृता कार्यं पिण्डनिर्वपनं सुतैः ॥ २४८ ॥
But after the Sapindikarana of the (deceased father) has been performed according to the sacred law, the sons must offer the cakes with those ceremonies, (described above.)
english translation