Sahih al-Bukhari, Book 5, Hadith 15 (In-Book) ⓘ
Narrated `Aisha: Whenever Allah's Messenger took a bath of Janaba, he washed his hands first.
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.
also referenced under: Hadith 262 (DarusSalam) & Volume 1, Book 5, Hadith 262 (USC-MSA)