مختصر صحيح بخاري
Mukhtasar Sahih Bukhari
Book of Funerals
Punishment for one who commits suicide
Narrated Abu Huraira (may Allah be pleased with him): The Prophet (peace and blessings of Allah be upon him) said: "Whoever kills himself by throttling shall keep on throttling himself in the Hellfire, and whoever kills himself with a weapon shall keep on injuring himself with it in the Hellfire."