15 verses have
So
in Edition Clear Qur'an by Talal Itani / Al-Hijr (The Rock)

15:8We do not send the angels down except with reason, and they will not be held back.

15:30So the angels prostrated themselves, all together.

15:55They said, “We bring you good news in truth, so do not despair.”

15:57He said, “So what is your business, O envoys?”

15:68He said, “These are my guests, so do not embarrass me.”

15:73So the Blast struck them at sunrise.

15:75Surely in that are lessons for those who read signs.

15:78The people of the Woods were also wrongdoers.

15:79So We took revenge upon them. Both are clearly documented.

15:80The people of the Rock also rejected the messengers.

15:85We did not create the heavens and the earth, and what lies between them, except with truth. The Hour is coming, so forgive with gracious forgiveness.

15:88Do not extend your eyes towards what We have bestowed on some couples of them to enjoy, and do not grieve over them, and lower your wing to the believers.

15:91Those who made the Quran obsolete.

15:94So proclaim openly what you are commanded, and turn away from the polytheists.

15:98So glorify the praise of your Lord, and be among those who bow down.