Sahih Muslim 967
صحيح مسلم#967SahihAbu Huraira reported:People should avoid lifting their eyes towards the sky while supplicating in prayer, otherwise their eyes would be snatched away
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: 4:129