“Abu ‘Abd Allah (a.s.), has said, ’If a plaintiff agrees with the defendant’s taking an oath who then swears that the plaintiff does not have any right on him, it abolishes the right of the plaintiff and the case is dismissed.’ I then asked, ‘What happens if he can present just testimony?’ He (the Imam) said, ‘Yes, even so, an oath by Allah fifty times abolishes and invalidates his claim because of which he had asked for an oath.’”