36:8
Indeed, We [We] have placed on their necks iron collars, and they (are up) to the chins, so they (are with) heads raised up.

17:107
Say, "Believe in it or (do) not believe. Indeed, those who were given the knowledge from before it, when it is recited to them, they fall on their faces (in) prostration."

17:109
And they fall on their faces weeping, and it increases them (in) humility.