Matsyapurana 16.49

16.49

dakṣiṇāṃ diśamākāṅkṣan pitṝn yāceta mānavaḥ
dātāro no 'bhivardhantāṃ vedāḥ saṃtatireva ca //

Facing south, the following boon should be sought from the Pitṛis : "You may continue to be our donors. The Vedas may exist, and our progeny may prosper. Let our devotion not diminish, we may have ample wealth to give to the needy, we may have plenty of grain, we may be visited by many guests. People may ask for help from us, we may not have to seek anything from others." This is the Anvâhârya Śrâddha, which is also called Pârvaṇa.—49—51.