Sahih Muslim 6843
صحيح مسلم#6843SahihAbu Huraira reported Allah's Messenger (ﷺ) as saying:He who recites in the morning and in the evening (these words):" Hallowed be Allah and all praise is due to Him" one hundred times, he would not bring on the Day of Resurrection anything excellent than this except one who utters these words or utters more than these words
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: 48:39