قُل لَّا يَعْلَمُ مَن فِى ٱلسَّمَـٰوَٲتِ وَٱلْأَرْضِ ٱلْغَيْبَ إِلَّا ٱللَّهُۚ وَمَا يَشْعُرُونَ أَيَّانَ يُبْعَثُونَ ٦٥
Say (O Muhammad): None in the heavens and the earth knoweth the Unseen save Allah; and they know not when they will be raised (again).