General Behavior (Kitab Al-Adab)
Dawud :: Book 41 : Hadith 5155
Narrated Huzayl:
A man came. Uthman's version has: Sa'd ibn AbuWaqqas came. He stood at the door. Uthman's version has: (He stood) facing the door. The Prophet (peace_be_upon_him) said to him: Away from it, (stand) this side or that side. Asking permission is meant to escape from the look of an eye.