"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.'" (Using translation from Nasāʾī 606)
«فَعَلَ رَسُولُ اللهِ ﷺ فِي هَذَا الْمَكَانِ مِثْلَ مَا فَعَلْتُ»