( صحيح البخاري )
Narrated Thabit bin Ad-Dahhak
The Prophet (p.b.u.h) said, “Whoever intentionally swears falsely by a religion other than Islam, then he is what he has said, (e.g. if he says, ‘If such thing is not true then I am a Jew,’ he is really a Jew). And whoever commits suicide with piece of iron will be punished with the same piece of iron in the Hell Fire.”
(Sahih al-Bukhari)
( صحيح مسلم )
Jabir b. Samura reported
(The dead body) of a person who had killed himself with a broad-headed arrow was brought before the Messenger of Allah (peace be upon him), but he did not offer prayers for him
( Sahih Muslim )