Sahih al-Bukhari 2830
Book 56: Fighting for the Cause of Allah (Jihaad) · Narrated by Anas bin Malik
Arabic
حَدَّثَنَا بِشْرُ بْنُ مُحَمَّدٍ، أَخْبَرَنَا عَبْدُ اللَّهِ، أَخْبَرَنَا عَاصِمٌ، عَنْ حَفْصَةَ بِنْتِ سِيرِينَ، عَنْ أَنَسِ بْنِ مَالِكٍ ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " الطَّاعُونُ شَهَادَةٌ لِكُلِّ مُسْلِمٍ ".
English translation
Narrated Anas bin Malik:The Prophet (ﷺ) said, "Plague is the cause of martyrdom of every Muslim (who dies because of it)
Reference: Sahih al-Bukhari 2830, Book of Fighting for the Cause of Allah (Jihaad). English translation by Dr. Muhammad Muhsin Khan.