From Sahih Bukhari (Hadith 1686):
Narrated 'Ubaidullah bin `Abdullah:Ibn `Abbas said, "Usama bin Zaid rode behind the Prophet (ﷺ) from `Arafat to Al-Muzdalifa; and then from Al-Muzdalifa to Mina, Al-Fadl rode behind him." He added, "Both of them (Usama and Al-Fadl) said, 'The Prophet (ﷺ) was constantly reciting Talbiya till he did Rami of the Jamarat-Al-`Aqaba
Reference: Bukhari 1686