Sahih Muslim
The Book Pertaining to Punishments Prescribed by Islam (Kitab Al-Hudud)
Book Number: 017 / Hadith Number: 4232
Ali reported: If I impose Hadd on anyone, and he (in course of punish ment) dies, I would not mind except in case of a drunkard. If he dies. I would pay indemnity for him because the Messenger of Allah (may peace be upon him) has laid down no rule for it.