“The Prophet of Allah ﷺ said: ‘Between every two Adhans there is a prayer.’ He said it three times, and on the third time he said, ‘For those who wish.’”*
نَبِيُّ اللَّهِ ﷺ بَيْنَ كُلِّ أَذَانَيْنِ صَلاَةٌ قَالَهَا ثَلاَثًا قَالَ فِي الثَّالِثَةِ لِمَنْ شَاءَ