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."
Sahih al-Bukhari Book 5, Hadith 37