Through that son whom (a daughter), either not appointed or appointed, may bear to (a husband) of equal (caste), his maternal grandfather (has) a son’s son; he shall present the funeral cake and take the estate.
Because a son delivers (trayate) his father from the hell called Put, he was therefore called put-tra (a deliverer from Put) by the Self-existent (Svayambhu) himself.
Between a son’s son and the son of a daughter there exists in this world no difference; for even the son of a daughter saves him (who has no sons) in the next world, like the son’s son.