The Buddha and the Cycle of Life What is the source of the cycle of life/death in the scripture , Does it have references in the Pali canon? Is the cycle itself introduced with Buddhism or came from other sources?
What is the source of the cycle of life/death in the scripture , Does it have references in the Pali canon?

From SN 15.2:

At Savatthı. “Bhikkhus, this samsara is without discoverable beginning. A first point is not discerned of beings roaming and wandering on hindered by ignorance and fettered by craving. Suppose, bhikkhus, a man would reduce this great earth to balls of clay the size of jujube kernels and put them down, saying [for each one]: ‘This is my father, this my father’s father.’ The sequence of that man’s fathers and grandfathers would not come to an end, yet this great earth would be used up and exhausted. For what reason? Because, bhikkhus, this sa˙s›ra is without discoverable beginning. A first point is not discerned of beings roaming and wandering on hindered by ignorance and fettered by craving.&quot;


Is the cycle itself introduced with Buddhism or came from other sources?

No, the concept of Samsara already existed in other religions before Buddhism.