It is narrated from Sayyidah Umm Salamah (may Allah be pleased with her) that she said to the Prophet (peace and blessings be upon him): I have not yet performed the Farewell Tawaf. The Prophet (peace and blessings be upon him) said to her: "When the people have prayed the Fajr prayer, perform the tawaf on your camel from behind the rows, then depart."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19875