Abu Hurairah reported,

The Messenger of Allah ﷺ said, "Whoever kills himself with a piece of iron will have that iron in his hand, stabbing himself in the belly with it in the Fire of Hell, abiding there forever and ever. Whoever drinks poison and kills himself will go on sipping it in the Fire of Hell, abiding there forever and ever. And whoever throws himself down from a mountain and kills himself will go on throwing himself down in the Fire of Hell, abiding there forever and ever."

Muslim 301

Sahih

و حدثني زهير بن حرب حدثنا جرير ح و حدثنا سعيد بن عمرو الأشعثي حدثنا عبثر ح و حدثني يحيى بن حبيب الحارثي حدثنا خالد يعني ابن الحارث حدثنا شعبة كلهم بهذا الإسناد مثله وفي رواية شعبة عن سليمان قال سمعت ذكوان

مسلم 301صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Faith
Chapter
Severity of the prohibition of a person killing himself, that whoever kills himself with something will be punished with it in the Fire, and that none will enter Paradise except a Muslim soul
Numbering
Darussalam 301
Muslim 301