This hadith is reported on the authority of Laith b. Sa'd with the same chain of transmitters, but with a slight variation in wording (and that is that) he (the Holy Prophet) said:
There is a day in a year when descends the pestilence; at the end of the hadith Laith said that the non Arabs save themselves from it in Kanun Awwal (this is the month of December).
Reference: Sahih Muslim 2014 b In-book : Book 36, Hadith 130 USC-MSA web (English) : Book 23, Hadith 5001 (deprecated)
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