Sahih al-Bukhari
Sahih al-Bukhari 168
While performing ablution or taking a bath one should start from the right side of the body
Arabic hadith text
حَدَّثَنَا حَفْصُ بْنُ عُمَرَ، قَالَ حَدَّثَنَا شُعْبَةُ، قَالَ أَخْبَرَنِي أَشْعَثُ بْنُ سُلَيْمٍ، قَالَ سَمِعْتُ أَبِي، عَنْ مَسْرُوقٍ، عَنْ عَائِشَةَ، قَالَتْ كَانَ النَّبِيُّ صلى الله عليه وسلميُعْجِبُهُ التَّيَمُّنُ فِي تَنَعُّلِهِ وَتَرَجُّلِهِ وَطُهُورِهِ وَفِي شَأْنِهِ كُلِّهِ.
Translation
Narrated `Aisha
The Prophet (ﷺ) used to like to start from the right side on wearing shoes, combing his hair and cleaning or washing himself and on doing anything else.