Jami` at-Tirmidhi 2576
جامع الترمذي#2576Da'ifAbu Sa'eed narrated that the Prophet SAW said:"As-Saud is a mountain in the Fire, a disbeliever will be raised upon it for seventy autumns and then similarly he will fall down it, forever." (Daif)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirDaif
Al-AlbaniDaif
Bashar Awad MaaroufHasan
Zubair Ali ZaiHasan
In-book reference: 39:4