25وَلَبِثوا في كَهفِهِم ثَلاثَ مِائَةٍ سِنينَ وَازدادوا تِسعًاMir AneesuddinAnd they stayed in their cave (for) three hundred years and add nine1.300 Solar years are equal to 309 lunar years. The number of years is stated in both the systems probably to provide us with an exact equivalent.