Sahih al-Bukhari 275
Sahih al-Bukhari · Book 5: Bathing (Ghusl) · If someone while in the mosque remembers that he is Junub, he should leave (the mosque to take a bath) and should not perform Tayammum
Narrated Abu Huraira:
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ ، قَالَ حَدَّثَنَا عُثْمَانُ بْنُ عُمَرَ ، قَالَ أَخْبَرَنَا يُونُسُ ، عَنِ الزُّهْرِيِّ ، عَنْ أَبِي سَلَمَةَ ، عَنْ أَبِي هُرَيْرَةَ ، قَالَ أُقِيمَتِ الصَّلاَةُ، وَعُدِّلَتِ الصُّفُوفُ قِيَامًا، فَخَرَجَ إِلَيْنَا رَسُولُ اللَّهِ صلى الله عليه وسلم فَلَمَّا قَامَ فِي مُصَلاَّهُ ذَكَرَ أَنَّهُ جُنُبٌ فَقَالَ لَنَا : " مَكَانَكُمْ ". ثُمَّ رَجَعَ فَاغْتَسَلَ، ثُمَّ خَرَجَ إِلَيْنَا وَرَأْسُهُ يَقْطُرُ، فَكَبَّرَ فَصَلَّيْنَا مَعَهُ. تَابَعَهُ عَبْدُ الأَعْلَى عَنْ مَعْمَرٍ عَنِ الزُّهْرِيِّ . وَرَوَاهُ الأَوْزَاعِيُّ عَنِ الزُّهْرِيِّ .
Once the call (Iqama) for the prayer was announced and the rows were straightened. Allah's Messenger (ﷺ) came out; and when he stood up at his Musalla, he remembered that he was Junub. Then he ordered us to stay at our places and went to take a bath and then returned with water dropping from his head. He said, "Allahu-Akbar", and we all offered the prayer with him.