From Sahih Muslim (Hadith 5773):
Usama b. Zaid reported that Allah's Messenger (ﷺ) had said:Plague is the sign of a calamity with which Allah, the Exalted and Glorious, affects people from His servants. So when you hear about it, don't enter there (where it has broken out), and when it has broken out in a land and you are there, then don't run away from it
Reference: Muslim 5773