[Machine] The Messenger of Allah ﷺ would sometimes experience seminal emission during the night while intending to fast. He would then perform ghusl (ritual bath) after the dawn had broken and complete his fast.
كَانَ رَسُولُ اللهِ ﷺ تُصِيبُهُ الْجَنَابَةُ مِنَ اللَّيْلِ وَهُوَ يُرِيدُ الصَّوْمَ فَيَغْتَسِلُ بَعْدَمَا يَطْلُعُ الْفَجْرُ ثُمَّ يُتِمُّ صِيَامَهُ
[Machine] The Messenger of Allah ﷺ would sometimes experience janabah (impurity after sexual discharge) during the night while intending to fast. He would sleep and then wake up in the morning in a state of janabah, so he would pour water over himself then perform ablution.
كَانَ رَسُولُ اللهِ ﷺ تُصِيبُهُ الْجَنَابَةُ مِنَ اللَّيْلِ وَهُوَ يُرِيدُ الصِّيَامَ فَيَنَامُ وَيَسْتَيْقِظُ وَيُصْبِحُ جُنُبًا فَيُفِيضُ عَلَيْهِ مِنَ الْمَاءِ ثُمَّ يَتَوَضَّأُ