Where the Defendant relies on paragraph (a) of O.18 r.19(1), then the court is obliged to examine the pleadings of the Plaintiff to determine if a cause of action is disclosed. In Tenaga Nasional Bhd v Kamarstone Sdn Bhd [2014] 1 CLJ 207, at 219-220, Jeffrey Tan FCJ had explained a “cause of action” as follows – “[12] In Letang v. Cooper [1965] 1 QB 232, 242-3, Lord Diplock defined a ‘cause of action’ as “a factual situation the existence of which entitled one person to obtain from the court a remedy against another”, which definition was adopted in Hock Hua Bank Bhd v. Leong Yew Chin [1987] 1 CLJ 126; [1987] CLJ (Rep) 126; [1987] 1 MLJ 230, where Abdul Hamid Ag LP, as he then was, appended that “there must be a cause of action before a plaintiff can claim a relief in an action”. In Government of Malaysia v. Lim Kit Siang & Another Case [1988] 1 CLJ 219; [1988] 1 CLJ (Rep) 63;; [1988] 2 MLJ 12, 19, the Supreme Court per Salleh Abbas CJ, expounded that to make up ‘a cause of action’, first, the plaintiff has a right at law or by statute and secondly, the right has been affected by the act of the defendant: A cause of action’ is a statement of facts alleging that a plaintiff’s right, either at law or by statute, has, in some way or another, been adversely affected or prejudiced by the act of a defendant in an action. Lord Diplock in Letang v. Cooper [1965] 1 QB 232 at p 242 defined ‘a cause of action’ to mean ‘a factual situation, the existence of which entitles one person to obtain from the court a remedy against another person’. In my view the factual situation spoken of by Lord Diplock must consist of a statement alleging that, first, the respondent/plaintiff has a right either at law or by statute and that, secondly, such right has been affected or prejudiced by the appellant/defendant’s act.