Bhagavatapurana 3.32.20

3.32.20

dakṣiṇena pathāryamṇaḥ pitṛ-lokaṃ vrajanti te /
prajām anu prajāyante śmaśānānta-kriyā-kṛtaḥ //

20. Through the southern path of Aryaman (through the path of smoke) they go to the region of the Pitris; they are again born of their own descendants and literally perform the prescribed duties from the rites pertaining to pregnancy to those that conclude on the cremation ground (from marriage to Death.)