Narrated Abu Hurairah: The Prophet ﷺ gave a decision on the basis of an oath and a single witness. Abu Dawud said: Al-Rabi bin Sulaiman al-muadhdhin told me some additional words in this tradition: Al-Shafi'i told me from Abd al-Aziz. I then mentioned it fo Suhail who said: Rabiah told me - and he is reliable in my opinion - that I told him this (tradition) and I do not remember it. Abd al-Aziz said: Suhail suffered from some disease which caused him to lose a little of his intelligence, and he forgot some of his traditions. Thereafter Suhail would narrate traditions from Rabiah on the authority of his father.