Volume 4, Book 52, Number 260:
Narrated Ikrima:
Ali burnt some people and this news reached Ibn ‘Abbas, who said, “Had I been in his place I
would not have burnt them, as the Prophet said, ‘Don’t punish (anybody) with Allah’s Punishment.’
No doubt, I would have killed them, for the Prophet said, ‘If somebody (a Muslim) discards his reli –
gion, kill him.’ “