Sahih Muslim 5847
صحيح مسلم#5847SahihThis hadith has been reported on the authority of Abu Huraira through another chain of transmitters (and the words are):- He who killed a gecko with the first stroke for him are ordained one hundred virtues, and with the second one less than that and with the third one less than that
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: 39:198