Narrated Al-Ju'aid bin `Abdur Rahman: I saw As-Sa'ib bin Yazid when he was ninety-four years old, quite strong and of straight figure. He said, "I know that I enjoyed my hearing and seeing powers only because of the invocation of Allah's Apostle . My aunt took me to him and said, 'O Allah's Apostle! My nephew is sick; will you invoke Allah for him?' So he invoked (Allah) for me."

Narrated As-Sa'ib bin Yazid: My aunt took me to the Prophet and said, "O Allah's Apostle! This son of my sister has got a disease in his legs." So he passed his hands on my head and prayed for Allah's blessings for me; then he performed ablution and I drank from the remaining water. I stood behind him and saw the seal of Prophethood between his shoulders, and it was like the "Zir-al-Hijla" (means the button of a small tent, but some said 'egg of a partridge.' etc.)