Al-Mujadila 58:7 الم تر ان الله يعلم ما في السماوات وما في الارض ما يكون من نجوى ثلاثة الا هو رابعهم ولا خمسة الا هو سادسهم ولا ادنى من ذالك ولا اكثر الا هو معهم اين ما كانوا ثم ينبيهم بما عملوا يوم القيامة ان الله بكل شيء عليم ٧

Do you not see [Prophet] that God knows everything in the heavens and earth? There is no secret conversation between three people where He is not the fourth, nor between five where He is not the sixth, nor between less or more than that without Him being with them, wherever they may be. On the Day of Resurrection, He will show them what they have done: God truly has full knowledge of everything.