Muwatta Malik, Book 20, Hadith 124 (USC-MSA)

Yahya related to me from Malik from Abu'l-Aswad Muhammad ibn Abd ar-Rahman ibn Nawfal from Urwa ibn az-Zubayr from Zaynab bint Abi Salama that Umm Salama, the wife of the Prophet, may Allah bless him and grant him peace, said, "I once complained to the Messenger of Allah, may Allah bless him and grant him peace, that I was ill and he said, 'Do tawaf riding behind the people.' So I did tawaf riding my camel, while the Messenger of Allah, may Allah bless him and grant him peace, was praying by the side of the House, reciting Surat at-Tur."

حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ أَبِي الأَسْوَدِ، مُحَمَّدِ بْنِ عَبْدِ الرَّحْمَنِ بْنِ نَوْفَلٍ عَنْ عُرْوَةَ بْنِ الزُّبَيْرِ، عَنْ زَيْنَبَ بِنْتِ أَبِي سَلَمَةَ، عَنْ أُمِّ سَلَمَةَ، زَوْجِ النَّبِيِّ صلى الله عليه وسلم أَنَّهَا قَالَتْ شَكَوْتُ إِلَى رَسُولِ اللَّهِ صلى الله عليه وسلم أَنِّي أَشْتَكِي فَقَالَ ‏"‏ طُوفِي مِنْ وَرَاءِ النَّاسِ وَأَنْتِ رَاكِبَةٌ ‏"‏ ‏.‏ قَالَتْ فَطُفْتُ رَاكِبَةً بَعِيرِي وَرَسُولُ اللَّهِ صلى الله عليه وسلم حِينَئِذٍ يُصَلِّي إِلَى جَانِبِ الْبَيْتِ وَهُوَ يَقْرَأُ بِـ ‏{‏الطُّورِ وَكِتَابٍ مَسْطُورٍ ‏}‏‏.‏

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also referenced under: Book 20, Hadith 827 (In-Book)