Aws al-Thaqafi reported the Messenger of Allah ﷺ as saying: If anyone washes his head on Friday and washes himself; and he narrated the rest of the tradition as above.
Explanation & Benefits
Shaykh Umar Farooq Saeedi
346. Commentary:
This narration clarifies the meaning of the aforementioned hadith, and the particular mention of "washing the head" is because the Arabs used to keep long hair, and washing it required effort and took time.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 346