Qur'an 11:5

أَلَآ إِنَّهُمْ يَثْنُونَ صُدُورَهُمْ لِيَسْتَخْفُوا۟ مِنْهُ ۚ أَلَا حِينَ يَسْتَغْشُونَ ثِيَابَهُمْ يَعْلَمُ مَا يُسِرُّونَ وَمَا يُعْلِنُونَ ۚ إِنَّهُۥ عَلِيمٌۢ بِذَاتِ ٱلصُّدُورِ

“Unquestionably, they [i.e., the disbelievers] turn away their breasts to hide themselves from him. Unquestionably, [even] when they cover themselves in their clothing, He [i.e., Allāh] knows what they conceal and what they declare. Indeed, He is Knowing of that within the breasts.”

Hud 11:5 · Saheeh International