Abdul Aziz bin Rubai narrates from his father, from his grandfather: The Prophet Muhammad (peace be upon him) delivered a sermon in the middle of the days of Tashreeq. (The narrator states) What is meant by this is the day of departure for the first time.
Hadith Referenceسنن الدارقطني / كتاب الحج / 2459
Hadith Takhrij«أخرجه الدارقطني فى ((سننه)) برقم: 2459»