Surat An-Nisaa (The Women) - النساء

وَيَقُولُونَ طَاعَةٌ فَإِذَا بَرَزُوا۟ مِنْ عِندِكَ بَيَّتَ طَآئِفَةٌ مِّنْهُمْ غَيْرَ ٱلَّذِى تَقُولُ وَٱللَّهُ يَكْتُبُ مَا يُبَيِّتُونَ فَأَعْرِضْ عَنْهُمْ وَتَوَكَّلْ عَلَى ٱللَّهِ وَكَفَىٰ بِٱللَّهِ وَكِيلًا ﴿٨١﴾

And they say: Obedience. But when they go out from your presence, a party of them decide by night upon doing otherwise than what you say; and Allah writes down what they decide by night, therefore turn aside from them and trust in Allah, and Allah is sufficient as a protector.