From Sahih Muslim (Hadith 3109):
Abdullah b. Yazid al-Khatmi reported on the authority of Abu Ayyub (Allah be pleased with him) that he prayed the sunset and 'Isha' prayers (together) at Muzdalifa in the company of Allah's Messenger (ﷺ) on the occasion of the Farewell Pilgrimage
Reference: Muslim 3109