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. (Using translation from Abū Dāʾūd 4291)
"إِنَّ الله يَبْعَثُ لِهذ الأُمَّةِ عَلَى رَأسِ كُلِّ مائة سَنَةٍ مَنْ يُجَدِّدُ لها دِينها".