Or am has the meaning of the initial a- hamza used to express disavowal did you suppose that you would be left in peace when God does not yet know that is through knowledge outwardly manifested those of you who have struggled sincerely and have not taken besides God and His Messenger and the believers an intimate friend? as a confidant or an ally? In other words when it has not yet become manifest who the sincere ones are — those described in the exclusive way mentioned. And God is aware of what you do.