He went to the Prophet ﷺ and said: Sometimes I become junub. He told him to wash his private parts and do wudoo’ as for prayer (i.e., then go to sleep, and do ghusl before Fajr).
أَنَّهُ أَتَى النَّبِيَّ ﷺ فَقَالَ إِنَّهُ تُصِيبُنِي الْجَنَابَةُ فَأَمَرَهُ أَنْ يَغْسِلَ ذَكَرَهُ وَيَتَوَضَّأَ وُضُوءَهُ لِلصَّلاةِ
[Machine] Omar asked the Messenger of Allah ﷺ, saying, "I experience sexual impurity (janabah) at night." The Messenger of Allah ﷺ instructed him to wash his private parts, perform ablution, and go to sleep.
سَأَلَ عُمَرُ رَسُولَ اللهِ ﷺ فَقَالَتُصِيبُنِي الْجَنَابَةُ مِنَ اللَّيْلِ فَأَمَرَهُ أَنْ يَغْسِلَ ذَكَرَهُ وَيَتَوَضَّأَ وَيَرْقُدَ
[Machine] Omar informed the Messenger of Allah ﷺ that impurity had come upon him at night, so the Messenger of Allah ﷺ instructed him to wash his genitals and perform ablution, then go to sleep.
أَنَّ عُمَرَ ذَكَرَ لِرَسُولِ اللهِ ﷺ أَنَّ الْجَنَابَةَ تُصِيبُهُ مِنَ اللَّيْلِ فَأَمَرَهُ رَسُولُ اللهِ ﷺ أَنْ يَغْسِلَ ذَكَرَهُ وَيَتَوَضَّأَ ثُمَّ يَنَامَ
[Machine] Umar asked the Messenger of Allah ﷺ, "I experience seminal emission during the night. Should I wash my private parts and perform ablution?" The Messenger of Allah ﷺ instructed him to wash his private parts and then perform ablution.
سَأَلَ عُمَرُ رَسُولَ اللهِ ﷺ قَالَ تُصِيبُنِي الْجَنَابَةُ مِنَ اللَّيْلِ؟ فَأَمَرَهُ أَنْ يَغْسِلَ ذَكَرَهُ وَلْيَتَوَضَّأْ