Sa'id bin Jubayr سعيد بن جبير الأسدي · The Book of the Times (of Prayer)

"I was with Ibn 'Umar when he departed from 'Arafah. When he came to Jam' (Al-Muzdalifah), he combined Maghrib and 'Isha', and when he finished he said: 'The Messenger of Allah (ﷺ) did similar to this in this place.'"

It was narrated from Ibn 'Umar that the Prophet (ﷺ) prayed Maghrib and 'Isha' at Al-Muzdalifah.

"I asked the Messenger of Allah (ﷺ) which action is most beloved to Allah? He said: 'Establishing prayer on time, honoring one's parents and Jihad in the cause of Allah.'"