Hadith 45

Bulugh al-Maram

Book 8: Marriage
وَفِي رِوَايَةٍ عَنْهَا : { كَانَ حُرًّا } .‏ وَالْأَوَّلُ أَثْبَتُ 1‏ .‏
Another narration from her has:

"He was a free man." The first (narration) is more well established.