Sayyidina Abu Huraira reported, perhaps in a marfu form, that he (Allah’s Messenger (SAW) said, “He who kills himself with iron will come on the day of resurrection with the iron in his hand, striking his stomach with it in the fire of Hell forever and ever and, he who kills himself with poison, will have poison in his hand, sipping it every now and then in the fire of Hell forever and ever.
[Bukhari 5778]