It is narrated from the Mother of the Believers, Sayyidah Umm Salamah (may Allah be pleased with her), that the Messenger of Allah (peace and blessings be upon him) would come out for the Fajr prayer with water dripping from his blessed head, (this bath being) due to marital relations and not due to a wet dream, and then he (peace and blessings be upon him) would begin the day fasting.
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Sulayman bin Yasar (may Allah have mercy on him) except Muhammad bin Umarah and Khuthaym bin Irak, and Asim is alone in narrating it from the two of them."