Surah Ash-Shu'ara 26:166

وَتَذَرُونَ مَا خَلَقَ لَكُمْ رَبُّكُم مِّنْ أَزْوَٰجِكُم ۚ بَلْ أَنتُمْ قَوْمٌ عَادُونَ

And leave what your Lord has created for you as mates? But you are a people transgressing."

Translation: Saheeh International

Tafsir

and forsake the wives your Lord has created for you? in other words you forsake intimacy with their front parts? Nay but you are a transgressing folk’ overstepping the bounds of what is lawful into what is unlawful.

Excerpt from Tafsir al-Jalalayn, commentary on 26:166, via Quran.com. The reader has the full commentary and 9 more tafsirs.