´It was narrated that ‘Ali said:` “The Messenger of Allah (ﷺ) stopped at ‘Arafat and said: ‘This is the place of standing, and all of ‘Arafat is a place of standing.’”
Hadith ReferenceSunan Ibn Majah / Chapters on Hajj Rituals / Hadith: 3010
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:ضعيف, إسناده ضعيف, سنن أبي داود (1935) ترمذي (885), انوار الصحيفه، صفحه نمبر 485