7 verses have
which
in Edition Clear Qur'an by Talal Itani / Al-Kahf (The Cave)

18:3In which they will abide forever.

18:7We made what is upon the earth an ornament for it, to test them as to which of them is best in conduct.

18:12Then We awakened them to know which of the two groups could better calculate the length of their stay.

18:19Even so, We awakened them, so that they may ask one another. A speaker among them said, “How long have you stayed?” They said, “We have stayed a day, or part of a day.” They said, “Your Lord knows best how long you have stayed.” “Send one of you to the city, with this money of yours, and let him see which food is most suitable, and let him bring you some provision thereof. And let him be gentle, and let no one become aware of you.”

18:29And say, “The truth is from your Lord. Whoever wills—let him believe. And whoever wills—let him disbelieve”. We have prepared for the unjust a Fire, whose curtains will hem them in. And when they cry for relief, they will be relieved with water like molten brass, which scalds the faces. What a miserable drink, and what a terrible place.

18:31These will have the Gardens of Eden, beneath which rivers flow. Reclining on comfortable furnishings, they will be adorned with bracelets of gold, and will wear green garments of silk and brocade. What a wonderful reward, and what an excellent resting-place.

18:58Your Lord is the Forgiver, Possessor of Mercy. Were He to call them to account for what they have earned, He would have hastened the punishment for them. But they have an appointment from which they will find no escape.