Read and reflect on verse 2166 from Surah Al-Kahf: 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...
قُلِ اللَّهُ أَعْلَمُ بِمَا لَبِثُوا ۖ لَهُ غَيْبُ السَّمَاوَاتِ وَالْأَرْضِ ۖ أَبْصِرْ بِهِ وَأَسْمِعْ ۚ مَا لَهُمْ مِنْ دُونِهِ مِنْ وَلِيٍّ وَلَا يُشْرِكُ فِي حُكْمِهِ أَحَدًا
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!"