Apastambadharmasutra 2.6.13.7

2.6.13.7

[dṛṣṭo dharmavyatikramaḥ sāhasaṃ ca pūrveṣām /

Now they quote also (the following Gâthâ from the Veda): '(Having considered myself) formerly a father, I shall not now allow (any longer) my wives (to be approached by other men), since they have declared that a son belongs to the begetter in the world of Yama. The giver of the seed carries off the son after death in Yama's world; therefore they guard their wives, fearing the seed of strangers. Carefully watch over (the procreation of) your children, lest stranger seed be sown on your soil. In the next world the son belongs to the begetter, an (imprudent) husband makes the (begetting of) children vain (for himself).'