What did Prophet Muhammad (peace be upon him) say about the believers being admitted into Paradise after mutual retaliation?
 Narrated Abu Sa`id Al-Khudri:                     Allah's Apostle said, "The believers, after being saved from the (Hell) Fire, will be stopped at a bridge between Paradise and Hell and mutual retaliation will be established among them regarding wrongs they have committed in the world against one another. After they are cleansed and purified (through the retaliation), they will be admitted into Paradise; and by Him in Whose Hand Muhammad's soul is, everyone of them will know his dwelling in Paradise better than he knew his dwelling in this world."