Wa yaqooloona taa'antun fa izaa barazoo min 'indika baiyata taaa'ifatum minhum ghairal lazee taqoolu wallaahu yaktubu maa yubaiyitoona faa'rid 'anhum wa tawakkal 'alal laah; wa kafaa billaahi Wakeelaa (an-Nisāʾ 4:81)
And they say, "[We pledge] obedience." But when they leave you, a group of them spend the night determining to do other than what you say. But Allah records what they plan by night. So leave them alone and rely upon Allah. And sufficient is Allah as Disposer of affairs. (An-Nisa [4] : 81)