Muwatta Malik
Book 20, Hadith 106
Arabic hadith text
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، أَنَّ عَائِشَةَ أُمَّ الْمُؤْمِنِينَ، قَالَتْ مَا أُبَالِي أَصَلَّيْتُ فِي الْحِجْرِ أَمْ فِي الْبَيْتِ .
Translation
Yahya related to me from Malik from Hisham ibn Urwa from hisfather that A'isha, umm al-muminin, said, "I do not mind whether Ipray in the Hijr or in the House." (i.e. praying in the Hijr is thesame as praying in the House).