The Book of Pilgrimage (Kitab Al-Hajj)
Muslim :: Book 7 : Hadith 2795
Jabir b. Abdullah reported that the Apostle of Allah (may peace be upon him) ordered us to put on Ihram (again) as we proceeded towards Mina after we had put it off (i. e. 'on the 8th of Dhu'l-Hijja). So we pronounced Talbiya at al-Abtah.