Sahih Muslim 3044
صحيح مسلم#3044SahihIbn Umar (Allah be pleased with him) reported that Allah's Messenger may peace be upon him) spent the night at Dhi Tuwa till it was dawn and then entered Mecca. 'Abdullah (b. 'Umar) himself did like it. And in the narration transmitted by Ibn Sa'ld (the words are):Until he obrerved the dawn prayer. Yahya (another narrator) said: Until it was dawn
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 15:250