Musnad Abu Ya'la al-Mawsili 147:65

Muhammad ibn Abdullah ibn Numayr narrated to us, Anas ibn Iyad narrated to us, Yusuf ibn Abi Dharr narrated to me, from Ja'far ibn Amr ibn Umayyah, from Anas ibn Malik, that the Messenger of Allah (peace and blessings of Allah be upon him) said: "There is no Muslim who lives for forty years in Islam except that Allah diverts from him three types of affliction: leprosy, insanity, and vitiligo. When he reaches fifty, Allah softens the reckoning for him. When he reaches sixty, Allah grants him repentance for what He loves. When he reaches seventy, Allah loves him and the inhabitants of the heaven love him. When he reaches eighty, Allah accepts his good deeds and overlooks his evil deeds. When he reaches ninety, Allah forgives him his past and future sins, he is named the prisoner of Allah on earth, and he is granted the right of intercession for his household."