Language:
كتاب الأذان
10  
Call to Prayers (Adhaan)
(166)
Chapter: A women shall ask her husband's permission (on wishing) to go to the mosque.
(166)
باب اسْتِئْذَانِ الْمَرْأَةِ زَوْجَهَا بِالْخُرُوجِ إِلَى الْمَسْجِدِ
Sahih al-Bukhari 873

Narrated Salim bin `Abdullah:

My father said, "The Prophet (ﷺ) said, 'If the wife of any one of you asks permission (to go to the mosque) do not forbid her."

حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ، عَنْ مَعْمَرٍ، عَنِ الزُّهْرِيِّ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ، عَنْ أَبِيهِ، عَنِ النَّبِيِّ صلى الله عليه وسلم‏.‏ ‏ "‏ إِذَا اسْتَأْذَنَتِ امْرَأَةُ أَحَدِكُمْ فَلاَ يَمْنَعْهَا ‏"‏‏.‏
Reference : Sahih al-Bukhari 873
In-book reference : Book 10, Hadith 264
USC-MSA web (English) reference : Vol. 1, Book 12, Hadith 832
  (deprecated numbering scheme)