There is not upon the blind from you-O people-a sin, and nor upon the lame a sin, and nor upon the sick a sin, in that they stay behind from the jihad with the believers; for the lack of their capacity. And whoever obeys Allah and His Messenger He enters him gardens beneath whose trees and palaces rivers flow, and whoever disobeys Allah and His Messenger, thus staying behind from the jihad with the believers, He punishes him a painful, aching punishment.