Have you not considered that Allah knows what is in the heavens and what is on the earth? There is in no private conversation three but that He is the fourth of them, nor are there five but that He is the sixth of them - and no less than that and no more except that He is with them [in knowledge] wherever they are. Then He will inform them of what they did, on the Day of Resurrection. Indeed Allah is, of all things, Knowing.
English Transliteration
Alam tara anna Allaha yaAAlamu ma fee alssamawati wama fee alardi ma yakoonu min najwa thalathatin illa huwa rabiAAuhum wala khamsatin illa huwa sadisuhum wala adna min thalika wala akthara illa huwa maAAahum ayna ma kanoo thumma yunabbiohum bima AAamiloo yawma alqiyamati inna Allaha bikulli shayin AAaleemun
Tafsir of Verse 7
God has numbered it, and they have forgotten it. God is witness over everything. Hast thou not seen that God knows whatsoever is in the heavens, and whatsoever is in the earth? Three men conspire not secretly together, but He is the fourth of them, neither five men, but He is the sixth of them, neither fewer than that, neither more, but He is with them, wherever they may be; then He shall tell them what they have done, on the Day of Resurrection. Surely God has knowledge of everything.
Seest thou not that Allah doth know (all) that is in the heavens and on earth? There is not a secret consultation between three, but He makes the fourth among them, - Nor between five but He makes the sixth,- nor between fewer nor more, but He is in their midst, wheresoever they be: In the end will He tell them the truth of their conduct, on the Day of Judgment. For Allah has full knowledge of all things.