﴿ قُلِ ٱللَّهُ أَعْلَمُ بِمَا لَبِثُوا۟ ۖ لَهُۥ غَيْبُ ٱلسَّمَٰوَٰتِ وَٱلْأَرْضِ ۖ أَبْصِرْ بِهِۦ وَأَسْمِعْ ۚ مَا لَهُم مِّن دُونِهِۦ مِن وَلِىٍّۢ وَلَا يُشْرِكُ فِى حُكْمِهِۦٓ أَحَدًۭا ﴾

“Say: "God knows best how long they remained [there]. His [alone] is the knowledge of the hidden reality of the heavens and the earth: how well does He see and hear! No guardian have they apart from Him, since He allots to no one a share in His rule!"”

Say: 'God is more knowledgeable of how long they tarried. Qatāda said, 'These are the words spoken by the People of the Book and completing where they had said They will say � [Q. 18:22]. And His words Say: 'God is more knowledgeable�' is a refutation of them. In the codex (muṣḥaf) of ʿAbd Allāh [b. Masʿūd] it is: And they said that they had tarried (wa-qālū labithū), that is because there is no verifiable or unvarying certainty [regarding the exact duration].