Quran 23:7 — The Believers (Al-Mu'minun)

Those who transgress these limits are the transgressors.

[23:6] Only with their spouses, or those who are rightfully theirs, do they have sexual relations; they are not to be blamed.

[23:8] When it comes to deposits entrusted to them, as well as any agreements they make, they are trustworthy.