(12) باب الأَمْرِ بِتَغْطِيَةِ الإِنَاءِ وَإِيكَاءِ السِّقَاءِ وَإِغْلاَقِ الأَبْوَابِ وَذِكْرِ اسْمِ اللَّهِ عَلَيْهَا وَإِطْفَاءِ السِّرَاجِ وَالنَّارِ عِنْدَ النَّوْمِ وَكَفِّ الصِّبْيَانِ وَالْمَوَاشِي بَعْدَ الْمَغْرِبِ
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 reference: Book 36, Hadith 130
USC-MSA web (English) reference(deprecated numbering scheme): Book 23, Hadith 5001