Yahya related to me from Malik from Ibn Shihab from Salim ibn Abdullah from Abdullah ibn Umar that the Messenger of Allah ﷺ prayed maghrib and isha together at Muzdalifa.
أَنَّ رَسُولَ اللَّهِ ﷺ صَلَّى الْمَغْرِبَ وَالْعِشَاءَ بِالْمُزْدَلِفَةِ جَمِيعًا