بُلُوغُ الْمَرَامِ
Bulugh al-Maram 1104
Marriage
وَعَنْ عَائِشَةَ رَضِيَ اَللَّهُ عَنْهَا قَالَتْ: { أُمِرَتْ بَرِيرَةُ أَنْ تَعْتَدَّ بِثَلَاثِ حِيَضٍ [1] } . رَوَاهُ اِبْنُ مَاجَهْ, وَرُوَاتُهُ ثِقَاتٌ, لَكِنَّهُ مَعْلُولٌ [2] .
Narrated 'Aishah (RA): Barirah was ordered to wait till three menstrual periods of hers have passed (before she could remarry). [Reported by Ibn Majah. Its narrators are reliable, but it is Ma'lul (having a hidden defect)].
Sunnah.com reference: Book 8, Hadith 166