The sermon of the Prophet (peace and blessings be upon him): on which day did he deliver it?

It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) came to Arafat. When the sun had passed its zenith, he (peace and blessings be upon him) ordered that al-Qaswa' (his she-camel) be brought, and the saddle was put on her for him (peace and blessings be upon him). He (peace and blessings be upon him) came to the bottom of the valley and addressed the people.

It is narrated from Muhammad bin Qays bin al-Muttalib that the Prophet (peace and blessings be upon him) delivered a sermon at Arafah.

It is narrated from al-Zuhri that the Messenger of Allah (peace and blessings be upon him) used to deliver a sermon on the Day of Sacrifice (Yawm al-Nahr). Later the rulers became occupied, so they postponed the sermon to the next day.

It is narrated from Mujahid that the Messenger of Allah (peace and blessings be upon him) addressed the people on the Day of Sacrifice, between the two Jamrahs, during the days of Tashriq.

Umar bin Abd al-Aziz addressed the people one day before the Day of Tarwiyah, in the forenoon.

And Sayyiduna Ibn al-Zubayr (may Allah be pleased with him) used to deliver sermons throughout all ten days.

Abd al-Rahman bin al-Aswad said: I saw my father go up to Sayyiduna Ibn al-Zubayr (may Allah be pleased with him) at Arafah while he was on the pulpit. When he came down, Ibn al-Zubayr recited the talbiyah. I said to my father: "What did you say to him?" He said: "I said to him: I heard Sayyiduna Umar (may Allah be pleased with him) recite the talbiyah here on the pulpit."

It is narrated from Masruq that the Prophet (peace and blessings be upon him) addressed the people on the Day of Sacrifice.