ENOfficial
Ibn ‘Umar reported God’s Messenger as saying, “When the wife of any of you asks permission to enter the mosque he must not prevent her.” (Bukhari and Muslim.)
Source: sunnah.com
Other translations
Arabic
وَعَنِ ابْنِ عُمَرَ قَالَ: قَالَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «إِذَا اسْتَأْذَنَتِ امْرَأَة أحدكُم إِلَى الْمَسْجِد فَلَا يمْنَعهَا»
sunnah.com