The word(s) "forehead" appears 3 time(s) in 3 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) On the Day when heat will be produced out of that (wealth) in the fire of Hell, and with it will be branded their foreheads, their flanks, and their backs, their flanks, and their backs.- "This is the (treasure) which ye buried for yourselves: taste ye, then, the (treasures) ye buried!"

(2) So when they had both submitted their wills (to Allah), and he had laid him prostrate on his forehead (for sacrifice),

(3) But his wife came forward (laughing) aloud: she smote her forehead and said: "A barren old woman!"