Please verify the authenticity of the du’a in this answer:
O Allah! I seek refuge in You from leprosy, madness and evil diseases
Imam Ibn Hibban (rahimahullah) has declared the Hadith authentic.
(Sahih Ibn Hibban; Al Ihsan, Hadith: 1017)
See the Arabic text of the du’a and other references here.
And Allah Ta’ala Knows best.
Answered by: Moulana Suhail Motala
Approved by: Moulana Muhammad Abasoomar