صحيح ابن خزيمه
Sahih Ibn Khuzaymah
كتاب: المناسكBook of Rituals (Hajj/Umrah)
(7) بَابُ الرُّخْصَةِ فِي الْحَجِّ عَلَى الدَّوَابِّ الْمُحْبَسَةِ فِي سَبِيلِ اللَّهِ7 Subchapter: Permission to perform Hajj on animals endowed for Allah’s cause
Hadith 2510
Imam Abu Bakr (may Allah have mercy on him) says that the evidence for this issue is the hadith of Sayyidah Umm Ma'qil (may Allah be pleased with her), which I have already mentioned in the Book of Charities.
