"I entered upon Umm Salamah and she told me that the Messenger of Allah ﷺ 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 ﷺ some grilled ribs and he ate from that, then he got up and prayed, and did not perform Wudu'.  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يُصْبِحُ جُنُبًا مِنْ غَيْرِ احْتِلاَمٍ ثُمَّ يَصُومُ وَحَدَّثَنَا مَعَ هَذَا الْحَدِيثِ أَنَّهَا حَدَّثَتْهُ أَنَّهَا قَرَّبَتْ إِلَى النَّبِيِّ ﷺ جَنْبًا مَشْوِيًّا فَأَكَلَ مِنْهُ ثُمَّ قَامَ إِلَى الصَّلاَةِ وَلَمْ يَتَوَضَّأْ  

"I entered upon Umm Salamah and she told me that the Messenger of Allah ﷺ 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 ﷺ some grilled ribs and he ate from that, then he got up and prayed, and did not perform Wudu'. (Using translation from Nasāʾī 183)  

أَنَّ رَسُولَ اللهِ ﷺ كَانَ يُصْبِحُ جُنُبًا مِنْ غَيْرِ احْتِلَامٍ ثُمَّ يَصُومُ وَحَدَّثَنَا مَعَ هَذَا الْحَدِيثِ أَنَّهَا حَدَّثَتْهُ أَنَّهَا قَرَّبَتْ إِلَى رَسُولِ اللهِ ﷺ جَنْبًا مَشْوِيًّا فَأَكَلَ مِنْهُ ثُمَّ قَامَ إِلَى الصَّلَاةِ وَلَمْ يَتَوَضَّأْ