narakapretatiryagdevamanuṣyabhedena pañcagatyāmakaḥ, saṃsāraḥ tadbahirbhūtāś ca bhagavanta ityasiddhaṃ martyatvameṣām /
The cycle of existence consists of five states: hell-beings, pretas, animals, gods and humans. And since the Blessed Ones exist beyond this [cycle], their mortality is not established.