‘Abdallah b. Mas'ud said he never saw God’s messenger observe a prayer out of its proper time with the exception of two, the sunset and the evening prayer, which he combined, and the dawn prayer which he observed that day(i.e. al-Muzdalifa) before its proper time.
Al-Fadl b. ‘Abbas who rode behind God’s messenger told that on the evening of ‘Arafa and the morning of Jam' (Here the name is clearly used for al-Muzdalifa) when the people returned, he said to them, “Preserve a quiet demeanour.” He held back his shecamel till he entered Muhassir which is a part of Mina, and said, “Get small pebbles for the lapidation of the jamra” He said that God’s messenger kept on raising his voice in the talbiya till he threw pebbles at the jamra.
Ibn ‘Umar said that the Prophet combined the sunset and the evening prayer, each with an iqama, but did not say ‘Glory be to God’ between them, or at the end of each one of them.