The Prophet ﷺ said: Allah will raise for this community at the end of every hundred years the one who will renovate its religion for it. Abu Dawud said: 'Abd al-Rahman bin Shuriah al-Iskandarani has also transmitted this tradition, but he did not exceed Shrahil.  

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ إِنَّ اللَّهَ يَبْعَثُ لِهَذِهِ الأُمَّةِ عَلَى رَأْسِ كُلِّ مِائَةِ سَنَةٍ مَنْ يُجَدِّدُ لَهَا دِينَهَا