أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ، عَنْ مَالِكٍ، عَنْ أَبِي الأَسْوَدِ، عَنْ عُرْوَةَ، عَنْ زَيْنَبَ بِنْتِ أُمِّ سَلَمَةَ، عَنْ أُمِّ سَلَمَةَ، أَنَّهَا قَدِمَتْ مَكَّةَ وَهِيَ مَرِيضَةٌ فَذَكَرَتْ ذَلِكَ لِرَسُولِ اللَّهِ صلى الله عليه وسلم فَقَالَ ‏"‏ طُوفِي مِنْ وَرَاءِ الْمُصَلِّينَ وَأَنْتِ رَاكِبَةٌ ‏"‏ ‏.‏ قَالَتْ فَسَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم وَهُوَ عِنْدَ الْكَعْبَةِ يَقْرَأُ ‏ Begin hadith 4‏ ‏.‏

It was narrated from Urwah from Zainab bint Umm Salamab, from Umm Salamah, that: she came to Makkah when she was sick. She mentioned that to the Messenger of Allah and he said: "Perform Tawaf behind those who are praying while you are riding." She said: "And I heard the Messenger of Allah, at the Kabah, reciting 'By the Tur (Mount)." Translation Not Available

Book Ref: Sunan An Nisai Book 24 Hadith 2927
Web Ref:  Sunan An Nisai Vol 3 Book 24 Hadith 2930