Kuraib, the freed slave of Ibn Abbas (RA) , narrated from Usama bin Zaid (RA) that he had heard him saying: Allahs 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 Iqama 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 Nawafil) in between them (He observed the Fard of sunset and Isha prayers successively.)