It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) performed ablution: he washed his hands three times each, washed his face three times each, washed his forearms three times each, and wiped his head and ears, and said: "The ears are part of the head." And he washed what remained. (Imam al-Tabarani says:) These are the words of Abu Umar's narration.
Hadith Referenceالمعجم الكبير للطبراني / باب الصاد / 7523