Sahih Al Bukhari Hadith Number 873

Narrated Salim bin `Abdullah: My father said, “The Prophet (peace be upon him) said, ‘If the wife of any one of you asks permission (to go to the mosque) do not forbid her.”

10  Call to Prayers (Adhaan)
Hadith number 873
Volume no 1
Chapter: 166 (A women shall ask her husband’s permission (on wishing) to go to the mosque.)