Hasan reported that Sayyidina Utbah ibn Ghazwan (RA) narrated a hadith of Prophet (SAW) from this, our pulpit of Busra. {He narrated that the Prophet (SAW)said:} “If a large stone is thrown down from the edge of Hell, it will go on falling down but not reach its bottom.’ Utbah then narrated the saying of Umar, “Remember the Fire often, for, its heat is severe and its bottom is very far and its whips are made of iron.”
[Ahmed 17586]