Sahih Muslim 2565
صحيح مسلم#2565SahihA hadith like this has been transmitted by Ibn 'Umar (Allah be pleased with both of them), but he did not make mention of (the words):" During the month of Ramadan
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: 13:71