(4) باب الوضوء
Narrated Abdullah bin 'Amr (rad) regarding the description of the ablution:
"Then he (Allah's Messenger (ﷺ)) wiped his head, inserted his index finger in his ears and wiped the exterior of his ears with thumbs". [Reported by Abu Da'ud and An-Nasa'i and Ibn Khuzaima graded it Sahih (sound)]. (ES)
Reference (ES): Bulugh al-Maram 36 (ES)
In-book reference (ES): Book 1, Hadith 42 (ES)
English translation (ES): Book 1, Hadith 41 (ES)