Surah An-Nisa' (The Women), Verse 81

وَیَقُوْلُوْنَ طَاعَةٌ فَاِذَا بَرَزُوْا مِنْ عِنْدِكَ بَیَّتَ طَآىِٕفَةٌ مِّنْهُمْ غَیْرَ الَّذِیْ تَقُوْلُ وَاللّٰهُ یَكْتُبُ مَا یُبَیِّتُوْنَ فَاَعْرِضْ عَنْهُمْ وَتَوَكَّلْ عَلَی اللّٰهِ وَكَفٰی بِاللّٰهِ وَكِیْلًا ۟

Wa yaqooloona taa'antun fa izaa barazoo min 'indika baiyata taaa'ifatum minhum ghairal lazee taqoolu wallaahu yaktubu maa yubaiyitoona fa a'rid 'anhum wa tawakkal 'alal laah; wa kafaa billaahi Wakeelaa

“They have "Obedience" on their lips; but when they leave thee, a section of them Meditate all night on things very different from what thou tellest them. But Allah records their nightly (plots): So keep clear of them, and put thy trust in Allah, and enough is Allah as a disposer of affairs.”

Quran 4:81 (Yusuf Ali Translation)