Imam Bukhari narrates: Abdul Aziz bin Abdullah narrated to us, he said: Ibrahim bin Sa'd narrated to us from Salih bin Kaisan from Ibn Shihab from Abi Salamah from Abu Hurairah, may Allāh be pleased with him, that
the Messenger of Allāh ﷺ came out of his room. At that time the Iqamah for prayer had already been said and the rows had been made straight, until when he stood on the prayer place, we were waiting for him to say the Takbir Tahrimah. He went back and said: Stay standing in your of your places. So we stayed standing in that state, until he came out towards us in such a state that drops of water were falling from his head, and indeed he had had a bath.
حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ عَبْدِ اللَّهِ، قَالَ حَدَّثَنَا إِبْرَاهِيمُ بْنُ سَعْدٍ، عَنْ صَالِحِ بْنِ كَيْسَانَ، عَنِ ابْنِ شِهَابٍ، عَنْ أَبِي سَلَمَةَ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم خَرَجَ وَقَدْ أُقِيمَتِ الصَّلاَةُ وَعُدِّلَتِ الصُّفُوفُ، حَتَّى إِذَا قَامَ فِي مُصَلاَّهُ انْتَظَرْنَا أَنْ يُكَبِّرَ انْصَرَفَ قَالَ " عَلَى مَكَانِكُمْ ". فَمَكَثْنَا عَلَى هَيْئَتِنَا حَتَّى خَرَجَ إِلَيْنَا يَنْطُفُ رَأْسُهُ مَاءً وَقَدِ اغْتَسَلَ.
Reference: Sahih Al Bukhari 639