Quran 5:26 Al-Ma'idah, ayah 26 of 120

قَالَ فَإِنَّهَا مُحَرَّمَةٌ عَلَيْهِمْ ۛ أَرْبَعِينَ سَنَةً ۛ يَتِيهُونَ فِى ٱلْأَرْضِ ۚ فَلَا تَأْسَ عَلَى ٱلْقَوْمِ ٱلْفَـٰسِقِينَ ۝٢٦

5:26 (Their Lord) said: For this the land will surely be forbidden them for forty years that they will wander in the earth, bewildered. So grieve not over the wrongdoing folk.