(17) باب فِي اعْتِزَالِ النِّسَاءِ فِي الْمَسَاجِدِ عَنِ الرِّجَالِ
Nafi said :
'Umar b. al-Khattab used to prohibit (men) to enter through the door reserved for women.
Reference: Sunan Abi Dawud 464
In-book reference: Book 2, Hadith 74
English translation: Book 2, Hadith 464