Allâh's Messenger (ﷺ) was neither very tall nor short, neither absolutely white nor deep brown. His hair was neither curly nor lank. Allâh sent him (as a Messenger (ﷺ)) when he was forty years old. Afterwards he resided in Makka for ten years and in Al-Madina for ten more years. (Please see Hadith No. 1580). When Allâh took him unto Him, there was scarcely twenty white hair in his head and beard, and then mentioned the whole narration. [4:748-O.B]