Salim bin Abdullah (may Allah have mercy on him) narrates from his father (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "When the wife of any of you asks permission to go to the mosque, let him not prevent her."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 10127
Nafi' narrates from Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Do not prevent the female servants of Allah from the mosques of Allah."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 10128