The word(s) "prison" appears 17 time(s) in 15 verse(s) in Quran in Mohsin Khan translation.

(11) Then the man who was released (one of the two who were in prison), now at length remembered and said: "I will tell you its interpretation, so send me forth."

(12) And he raised his parents to the throne and they fell down before him prostrate. And he said: "O my father! This is the interpretation of my dream aforetime! My Lord has made it come true! He was indeed good to me, when He took me out of the prison, and brought you (all here) out of the bedouin-life, after Shaitan (Satan) had sown enmity between me and my brothers. Certainly, my Lord is the Most Courteous and Kind unto whom He wills. Truly He! Only He is the All-Knowing, the All-Wise.

(13) [And We said in the Taurat (Torah)]: "It may be that your Lord may show mercy unto you, but if you return (to sins), We shall return (to Our Punishment). And We have made Hell a prison for the disbelievers.

(14) [Fir'aun (Pharaoh)] said: "If you choose an ilah (god) other than me, I will certainly put you among the prisoners."

(15) And those who disbelieved will be driven to Hell in groups till, when they reach it, the gates thereof will be opened (suddenly like a prison at the arrival of the prisoners). And its keepers will say, "Did not the Messengers come to you from yourselves, reciting to you the Verses of your Lord, and warning you of the Meeting of this Day of yours?" They will say: "Yes, but the Word of torment has been justified against the disbelievers!"