Sunan Ibn Majah, Book 31, Hadith 3614 (In-Book)

It was narrated from Jabir that the Prophet fell from his horse onto the truck of a palm tree and dislocated his foot. (One of the narrators) Waki’ said: “Meaning that the Prophet was cupped because of that for bruising.”

حَدَّثَنَا مُحَمَّدُ بْنُ طَرِيفٍ، حَدَّثَنَا وَكِيعٌ، عَنِ الأَعْمَشِ، عَنْ أَبِي سُفْيَانَ، عَنْ جَابِرٍ، أَنَّ النَّبِيَّ ـ صلى الله عليه وسلم ـ سَقَطَ مِنْ فَرَسِهِ عَلَى جِذْعٍ فَانْفَكَّتْ قَدَمُهُ ‏.‏ قَالَ وَكِيعٌ يَعْنِي أَنَّ النَّبِيَّ ـ صلى الله عليه وسلم ـ احْتَجَمَ عَلَيْهَا مِنْ وَثْءٍ ‏.‏

sunnah.com