SUICIDE

 

Narrated Abu Huraira: The Prophet (peace be upon him) said, “He who commits suicide by throttling shall keep on throttling himself in the Hell Fire (forever) and he who commits suicide by stabbing himself shall keep on stabbing himself in the Hell-Fire.”

Sahih Al-Bukhari – Book 23 Hadith 446

Narrated 'Abdullah (Radi-Allahu 'anhu):
The Prophet (Sallallahu 'Alaihi Wa Sallam) said, "Abusing a Muslim is Fusuq (evil doing) and killing him is Kufr (disbelief)."

Bukhari Vol. 9 : No. 197

Suicide in Islam is a great sin.