Anas (Radiallahu Anhu) reports:
"Rasullullah (pbuh) was neither tall nor was he short (He was of medium stature). In complexion, he was neither very white like lime, nor very dark, nor brown which results in darkness (he was illuminant, more luminous than even the full-moon on the 14th night).The hair of Rasullullah (pbuh) was neither very straight nor very curly (but slightly wavy). When he attained the age of forty, Allah the Almighty granted him prophethood.He lived for ten years in Makkah and in Madina for ten years. At that time there were not more than twenty white hair on his (blessed) head and beard." Shamail Muhammadia by Termizi