Garudapurana 2.5.67

2.5.67

navaśrāddhasya te kālaṃ vakṣyāmi śṛṇu kāśyapa /
maraṇāhni mṛtisthāne śrāddhaṃ pakṣinprakalpayet //

I shall tell you the time for the navaśrāddha; listen, O Kaśyapa: / on the day of death, at the place of death, O bird, one should arrange a śrāddha.