And the 121st prohibition is that we are forbidden from breaking any bone of the Pesach offering.

The source of this commandment is G‑d's statement,1 "Do not break any of its bones."

One who breaks one of its bones is punished by lashes. Our Sages explicitly said,2 "One who breaks a bone from a Pesach offering which was [brought when the congregation3 was] pure is punished by lashes.