Sahih Muslim 6810
صحيح مسلم#6810SahihAbu Huraira reported Allah's Apostle (ﷺ) as saying:Verily, there are ninety-nine names for Allah, i. e. hundred excepting one. He who enumerates them would get into Paradise. And Hammam has made this addition on the authority of Abu Huraira who reported it from Allah's Apostle (ﷺ) that he said:" He is Odd (one) and loves odd number
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: 48:6