Dalil
العربية

Quran Al-Kahf 18:25

وَلَبِثُواْ فِي كَهۡفِهِمۡ ثَلَٰثَ مِاْئَةٖ سِنِينَ وَٱزۡدَادُواْ تِسۡعٗا

Translation

And they remained in their cave for three hundred years and exceeded by nine.