Sahih al-Bukhari 262

Arabic

حَدَّثَنَا مُسَدَّدٌ، قَالَ حَدَّثَنَا حَمَّادٌ، عَنْ هِشَامٍ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم إِذَا اغْتَسَلَ مِنَ الْجَنَابَةِ غَسَلَ يَدَهُ‏.‏

English translation

Narrated `Aisha:Whenever Allah's Messenger (ﷺ) took a bath of Janaba, he washed his hands first

Reference: Sahih al-Bukhari 262, Book of Bathing (Ghusl). English translation by Dr. Muhammad Muhsin Khan.