Mishkat al-Masabih #1468

Usama b. Zaid reported God’s messenger as saying, “Plague is a punishment which was sent down on a section of the B. Isrs’il, or on people before your time. When you hear of it in a land do not go to it, and if it occurs in a land while you are in it do not go out fleeing from it. (Bukhari and Muslim.)