‘One who observes the same prayer as we do, faces the same direction in prayer as we do, and partakes from the animal slaughtered by us, then such a one is a Muslim concerning whom there is a Covenant of Allah and His Messenger: so you must not seek to hoodwink Allah in the matter of this Covenant.’
'A believer is still within the
scope of his religion as long as he does not shed forbidden blood....If
anyone curses a believer, that is like murdering him; and if anyone accuses a
believer of disbelief, that is like murdering him...A slanderer will not enter
the Garden of Paradise’.