Narrated Anas:
that the Messenger of Allah (ﷺ) said: "The parable of my Ummah is that of a rain; it is not known if its beginning is better or its end." (ID)
English reference (ID): Vol. 5, Book 42, Hadith 2869 (ID)
Arabic reference (ID): Book 44, Hadith 3109 (ID)