Abu Humaid reported to the same effect. He said: When he (the Prophet) prostrated he kept his thighs wide and did not let his belly touch the thighs. Abu Dawud says that Ibn Mubarak narrated this hadith from Abbas bin Sahl, which he did not remember well. It is thought that he has mentioned ‘Isa bin Abdullah, Abbas bin Sahl and Abu Humaid al-Saeedi