It is narrated from Sayyidah Umm Salamah (may Allah be pleased with her); she said: I performed Hajj with the Messenger of Allah (peace and blessings be upon him), and I fell ill before performing tawaf of the House, so the Messenger of Allah (peace and blessings be upon him) said: "Mount, and perform tawaf riding from behind the people." At that time he (peace and blessings be upon him) was praying at the edge of the House.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20108