Al-Kahf 25
وَلَبِثُوا۟ فِى كَهْفِهِمْ ثَلَٰثَ مِا۟ئَةٍ سِنِينَ وَٱزْدَادُوا۟ تِسْعًا ﴿٢٥﴾
Walabithoo fee kahfihim thalatha miatin sineena waizdadoo tisAAan
And they stayed in their Cave three hundred (solar) years, and add nine (for lunar years). The Noble Quran