General Behavior (Kitab Al-Adab)
Dawud :: Book 41 : Hadith 5252
Narrated AbuUsayd al-Ansari:
AbuUsayd heard the Apostle of Allah (peace_be_upon_him) say when he was coming out of the mosque, and men and women were mingled in the road: Draw back, for you must not walk in the middle of the road; keep to the sides of the road. Then women were keeping so close to the wall that their garments were rubbing against it.