The Prophet ﷺ was cupped on the two veins at the sides of the neck and between the shoulders.
حدثنا وكيع حدثنا سفيان عن جابر عن عامر
احتجم النبي ﷺ في الأخدعين وبين الكتفين
Its isnad is daif due to the weakness of Jabir Jafi. Amir is Shaybi. The hadith is found in Majma al-Zawaid 5:92.The two akhdaean are the two veins on either side of the neck. In ح it reads "between the shoulders" and "between the ankles," and this is what we have confirmed to be correct from ك and Majma al-Zawaid. See 2155. The meaning of the hadith is sahih, and it will come again through the hadith of Anas, 12217, 13033.