Sunnah.com reference : Book 8, Hadith 43English translation : Book 8, Hadith 1013Arabic reference : Book 8, Hadith 1006
Narrated 'Aishah (RA):
Barirah was given her choice regarding her husband (to remain with him or separate) when she was freed.

[Agreed upon; it is a part of a long Hadith].
وَعَنْ عَائِشَةَ رَضِيَ اَللَّهُ عَنْهَا قَالَتْ : { خُيِّرَتْ بَرِيرَةُ عَلَى زَوْجِهَا حِينَ عَتَقَتْ }  .‏ مُتَّفَقٌ عَلَيْهِ فِي حَدِيثٍ طَوِيلٍ  1‏ .‏‏1 ‏- صحيح .‏ رواه البخاري ( 5097 )‏ ، ومسلم ( 1504 )‏ ( 14 )‏ واللفظ لمسلم.‏