Allah's Messenger (ﷺ) proceeded from 'Arafa, and as he approached the creek of a hill, he got down (from his camel) and urinated, and then performed a light ablution. I said to him: Prayer, whereupon he said: The prayer awaits you (at Muzdalifa). So he rode again, and as he came to Muzdalifa, he got down and performed ablution well. Then Iqima was pronounced for prayer, and he 'observed the sunset prayer. Then every person made his camel kneel down there, and then Iqama was pronounced for 'Isha' prayer and he observed it, and he (the Holy Prophet) did not observe any prayer (either Sunan or Nawifil) in between them (He observed the Fard of sunset and 'Isha' prayers successively.)

Ibn Abbas (Allah be pleased with them) reported that Allah's Apostle (ﷺ) made al-Fadl sit behind him (on the camel back) from the place (where the two prayers) are combined (Muzdalifa). Ibn Abbas (Allah be pleased with them) also informed that Allah's Apostle (ﷺ) did not stop pronouncing Talbiya till he threw pebbles at Jamrat al-'Aqaba.

Ibn 'Abbas narrated from al-Fadl b. Abbas (Allah be pleased with them) who sat behind Allah's Messenger (ﷺ) that he (the Holy Prophet) said to the people on the evening of 'Arafa and on the morning to the gathering of people (at Muzdalifa) as they were pushing on to proceed slowly. And he himself drove his she-camel with restraint until he entered Muhassir (it is a place in Mina), and further told them to take up pebbles which were to be thrown at Jamra. And Allah's Messenger (ﷺ) continued pronouncing Talbiya till he stoned the Jamra.

I have heard from one upon whom Surah al-Baqara was revealed (the Holy Prophet) pronouncing Talbiya at this place.