ʿUyūn akhbār al-Riḍā

Hadith 139
plague
139 - وَبِهذَا الإِسنادِ عَنْ عَلِىِّ بْنِ أَبِي طالِبٍ‏ عَلَيْهِالسَّلامُ قالَ: الطّاعونُ مِيْتَةٌ وَحِيّةً.
31-139 According to the same documentation, Ali ibn Abi Talib (a.s.) said, “Plague is sudden death.”
Source: Shaykh Muḥammad b. ʿAlī al-Ṣaduq