Musnad Ahmad 27:1177

Abu al-Nadr narrated to us, al-Faraj narrated to us, Muhammad ibn ‘Amir narrated to us, from Muhammad ibn ‘Abd Allah, from Ja‘far ibn ‘Amr, from Anas ibn Malik, who said: "When a Muslim man reaches forty years of age, Allah secures him from types of afflictions: from insanity, vitiligo, and leprosy. When he reaches fifty, Allah the Almighty softens his reckoning for him. When he reaches sixty, Allah grants him repentance that He loves him for. When he reaches seventy, Allah loves him and the inhabitants of the heaven love him. When he reaches eighty, Allah accepts his good deeds from him and erases 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 family."