Or maybe the one who claims this have some sickness in his...

Or maybe the one who claims this have some sickness in his soul to let other wear this dress [meaning infallibility] and let others take their places instead (places of prophets), Those who do wrong will come to know by what a (great) reverse they will be overturned! And your Lord is not in the least unjust for the slaves.

Then do not forget that all the prophets and saints (viceroys) had been oppressed and hurt and no one answered their calls except few from their nations (Few of My bondmen are thankful) (Saba'': 13) Then what does it mean God''s saying "Lo! We verily do help Our messengers, and those who believe, in the life of the world and on the day when the witnesses arise"(Al-Mu''min, Ghâfir: 51)?