Al-Kāfi
Hadith 20132- وَبِهَذَا الإسْنَادِ أَنْ يَدْخُلَ دَاخِلٌ عَلَى النِّسَاءِ إِلا بِإِذْنِ أَوْلِيَائِهِنَّ.
2. Through the same chain of narrators as that of the previous Hadith the following is narrated: “Men must not enter the place of women without the permission of their guardian.”