Jami` at-Tirmidhi 2577
جامع الترمذي#2577Da'ifAbu Hurairah narrated that the Prophet (s.a.w) said:"Indeed a disbeliever's skin will be forty-two forearm lengths thick, his molar teeth will be like Uhud (mountain), and his sitting place in Hell will be like what is between Makkah and Al-Madinah
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiDaif
In-book reference: 39:5