Sahih Bukhari Volume 007, Book 062, Hadith Number 040.

Narrated By 'Aisha : That Aflah the brother of Abu Al-Qu'ais, her foster uncle, came, asking permission to enter upon her after the Verse of Al-Hijab (the use of veils by women) was revealed. 'Aisha added: I did not allow him to enter, but when Allah's Apostle came, I told him what I had done, and he ordered me to give him permission.

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