Ghurfa bin Harith reported,
I witnessed the Messenger of Allah ﷺ during the Farewell Pilgrimage. The sacrificial camels were brought, and he said, "Call Abu Hasan for me."Ali 
was summoned, and the Messenger of Allah ﷺ said to him, "Take hold of the lower part of the spear."The Messenger of Allah ﷺ held the upper part, and together they thrust it into the camels. When he finished, he mounted his mule and seated Ali behind him.
Abu Dawud 1766
Daifحدثنا محمد بن حاتم حدثنا عبد الرحمن بن مهدي حدثنا عبد الله بن المبارك عن حرملة بن عمران عن عبد الله بن الحارث الأزدي قال سمعت غ
رفة بن الحارث الكندي قال
شهدت رسول الله ﷺ في حجة الوداع وأتي بالبدن فقال ادعوا لي أبا حسن فدعي له علي رضي الله عنه فقال له خذ بأسفل الحربة وأخذ رسول الله ﷺ بأعلاها ثم طعنا بها في البدن فلما فرغ ركب بغلته وأردف عليا رضي الله عنه
No references are available.
[Its chain is daif] Tabarani narrated it in al-Kabir, 18/261, 262, no. 655, from the hadith of Abdul-Rahman bin Mahdi, through this route. Abdullah bin Harith is obscure, no one but Ibn Hibban rated him as trustworthy, and Ibn Qattan considered him unknown.