Sins of Disbelief – Oppression Suicide and insincerity
The Prophet (saw) said, “Whoever kills himself with iron (a sharp instrument) then his iron will be in his hand, and he will be stabbing himself in the stomach with it forever in the Fire of Hell. Whoever kills himself with poison, then he will be drinking that poison forever in the Fire of Hell. Whoever throws himself from a mountain and kills himself, he will be throwing himself down forever in the Fire of Hell”. [Muslim]