"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)
Jami` at-Tirmidhi Book 39, Hadith 4
← Previous Hadith "While he was on the pulpit – the pulpit of Al-Basrah – `Utbah bin Ghazwain narrated that the Messenger of Allah (s.a.w) said: “Indeed a giant rock can be thrown from the brink of Hell and it will continue to fall into it for seventy years without reaching the bottom of it.”.He said: “`Umar used to say:'Increase in your remembrance of the Fire, for its heat is extreme, its bottom is distant, and its whips are of Iron.'” (Sahih)

Jami` at-Tirmidhi Book 39, Hadith 3 Next Hadith → "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."

Jami` at-Tirmidhi Book 39, Hadith 5