Suddhikasutta

sn29.1:1.1 At Sāvatthī.

sn29.1:1.2 “Mendicants, dragons reproduce in these four ways.

sn29.1:1.3 What four?

sn29.1:1.4 Dragons are born from eggs, from a womb, from moisture, or spontaneously.

sn29.1:1.5 These are the four ways that dragons reproduce.”