A believer does not become impure
Abū Hurayrah slipped away and came back washed, and was asked where he had gone.
سُبْحَانَ اللَّهِ يَا أَبَا هِرٍّ إِنَّ الْمُؤْمِنَ لاَ يَنْجُسُ
Glory be to Allah, Abū Hurayrah, the believer does not become impure.
The full narration
Narrated Abu Huraira:Allah's Messenger (ﷺ) came across me and I was Junub. He took my hand and I went along with him till he sat down I slipped away, went home and took a bath. When I came back, he was still sitting there. He then said to me, "O Abu Huraira! Where have you been?' I told him about it. The Prophet (ﷺ) said, "Subhan Allah! O Abu Huraira! A believer never becomes impure
Source
Ṣaḥīḥ al-Bukhārī · 285
Ṣaḥīḥ
- Agreed upon as authentic (al-Bukhārī / Muslim)