Why did our Nabi (Sallallahu alayhi wasallam) say that one should flee from the leper?

Answer

You may pose this question to Rasulullah (Sallallahu alayhi wasallam) on the Day of Qiyaamah if you are afforded an opportunity of meeting him. Why are you stupidly seeking to cancel Rasulullah's explicit La Adwaa (Disease is not contagious) declaration with the leper Hadith? Why are you casting a blind eye in this direction? Only nifaaq or kufr or extreme deficiency of Imaan constrains a person to abrogate the Ahkaam of the Shariah by means of creating satanic contradictions. Regardless of the reason for fleeing from a leper, the irrefutable fact is that Rasulullah (Sallallahu alayhi wasallam) said: "La Adwaa". This suffices for a Mu'min, not for a munaafiq.

If someone decides to flee from a leper, he may do so, but he may not utilize the narration to deny the immutable Truth of the statement made by our Nabi (Sallallahu alayhi wasallam) regarding his negation of the kufr idea of contagion which was the belief of the mushrikeen, and which is still the idea of the atheists of this era.

Rasulullah (sallallahu alayhi wasallam) advised fleeing from a leper because of Imaani weakness of people such as you. The fleeing is not for those whose Imaan is sound. While people cite this narration to bolster the ideas of the atheists, they conveniently 'forget' that Rasulullah (Sallallahu alayhi wasallam) ate together with a leper from the same bowl. He said to the leper: "Eat and have tawakkul on Allah." They will not mention that the lepers were not banned from the Musjid nor were they quarantined, etc.

A person who cites this or similar narrations to bolster the kuffaar theory and to scuttle the negation of contagion by Rasulullah (Sallallahu alayhi wasallam) do so at the peril of losing their Imaan.