It was narrated that Sulaiman bin Yasar said: “I entered upon Umm Salamah and she told me that the Messenger of Allah صلی اللہ علیہ وآلہ وسلم used to wake up in a state of Janabah without having had a wet dream, then he would fast.” And she told him that she brought the Prophet صلی اللہ علیہ وآلہ وسلم some grilled ribs and he ate from that, then he got up and prayed, and did not perform Wudu’. (Sahih)