It was narrated from 'Abdullah bin Yazid that Abu Ayyub Al-Ansari told him, that during the Farewell Pilgrimage. He prayed with the Messenger of Allah (ﷺ) Maghrib and 'Isha' prayers together at Al-Muzdalifah.
Hadith Referenceسنن نسائي / كتاب المواقيت / 606
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه
´It was narrated that Sa'eed bin Jubair said:` "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 that 'Abdullah said:` "I never saw the Messenger of Allah (ﷺ) combine any two prayers except in Al-Muzdalifah, and on that day he prayed Subh before its time."
Hadith Referenceسنن نسائي / كتاب المواقيت / 609
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه