((Imām Bukhārī narrates) that) Muhammad ibn Yūsuf narrated to us, he said: Abū Mus-hir narrated to us, he said: Muhammad ibn Harb narrated to me, he said: Al-Zubaidī narrated to me, from al-Zuhrī, from Mahmūd ibn al-Rabī', may Allāh be pleased with him, he says:
that I remember that the Prophet ﷺ rinsed his mouth with water from a bucket upon my face; at that time I was five years old.
حَدَّثَنِي مُحَمَّدُ بْنُ يُوسُفَ قَالَ: حَدَّثَنَا أَبُو مُسْهِرٍ قَالَ: حَدَّثَنِي مُحَمَّدُ بْنُ حَرْبٍ، حَدَّثَنِي الزُّبَيْدِيُّ، عَنِ الزُّهْرِيِّ، عَنْ مَحْمُودِ بْنِ الرَّبِيعِ قَالَ
عَقَلْتُ مِنَ النَّبِيِّ ﷺ مَجَّةً مَجَّهَا فِي وَجْهِي، وَأَنَا ابْنُ خَمْسِ سِنِينَ مِنْ دَلْوٍ.
Reference: Sahih Al Bukhari 77