Sahih Muslim 2002
صحيح مسلم#2002SahihAbdullah b. Umar and Abu Huraira said that they heard Allah's Messenger (ﷺ) say on the planks of his pulpit:People must cease to neglect the Friday prayer or Allah will seal their hearts and then they will be among the negligent
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: 7:52