Seeing leprosy or a person with leprosy is described as unfavorable. Al-Nabulsi says that seeing oneself afflicted with leprosy signifies being distanced from Almighty Allah because of audacity toward Him or attributing a bad act to Him, and the invalidation of the reward of one's deeds.
Seeing leprosy spread over the body signifies abundant and lasting wealth. It is also said that leprosy signifies clothing from inherited wealth. At times the disease signifies wealth. Being afflicted with leprosy while praying signifies forgetting the Qur'an. The source closes by saying that Allah knows best.