بُلُوغُ الْمَرَامِ
Bulugh al-Maram 261
The Book of Prayer
وَعَنْهَا : { أَنَّ وَلِيدَةً سَوْدَاءَ كَانَ لَهَا خِبَاءٌ فِي اَلْمَسْجِدِ , فَكَانَتْ تَأْتِينِي , فَتَحَدَّثُ عِنْدِي . . . } اَلْحَدِيثَ. مُتَّفِقٌ عَلَيْه ِ [1]
Narrated ['Aishah (RA)]: One black slave-girl had a tent in the mosque and she used to come to me and talk (with me) in my house. [Agreed upon].
Sunnah.com reference: Book 2, Hadith 133