It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Whoever kills himself with a sharp instrument (commits suicide), that sharp instrument will be in his hand and he will be stabbing it into his belly in Hellfire, and he will remain there forever and ever. And whoever throws himself down from a mountain and commits suicide, he will be falling down from a mountain in Hellfire as well, and he will remain there forever and ever.