Expanding from that point, the Plaintiff relies on the case Radiant Splendour Sdn Bhd & Anor V Dr Mohammad Hanis Bin Osman [2025] 10 MLJ 310, where Yusrin Faidz JC held: “[55] In light of these findings, I am compelled to agree with the defendant that the doctrine of issue estoppel squarely applies to bar the present claim. The principle, as enunciated by the Supreme Court in Asia Commercial Finance (M) Bhd v Kawal Teliti Sdn Bhd, is that a party is estopped not only from relitigating issues which were actually decided in a prior action, but also from raising any issue which could and should have been litigated in the earlier action, but was not — whether due to oversight, tactical reserve, or strategic omission. [56] The rationale is firmly grounded in the need to ensure finality of litigation and to guard against the piecemeal presentation of claims across multiple proceedings involving the same subject matter and parties. As Azimah Omar J (as Her Ladyship then was) rightly held at para [58] of Suit 793 judgment: … Litigants cannot be allowed to reveal their causes of action on a staggered basis, intending to inundate the court and the opposing party in an unending saga of litigation. There must be finality in litigation, and to decide against such finality would only open the courts to a chasm of unending litigations. [57] In the present suit, the plaintiffs are once again attempting to challenge the validity of the same settlement agreements and transactional conduct on substantially similar grounds. This assertion, though newly framed in religious and statutory language via a request for reference under s 56 of the Central Bank of Malaysia Act 2009, does not escape the boundaries of issue estoppel. It is plainly an attempt to relitigate matters that either were or ought to have been raised in Suit 793 case and the related proceedings. [58] Accordingly, I find that the plaintiffs are estopped from seeking the reliefs now prayed for in this action. The doctrine of issue estoppel bars this court from entertaining claims which should have been finally adjudicated in prior litigation. To permit otherwise would render the doctrine of res judicata a nullity and expose the judicial system to repetitive and vexatious litigation.” [Emphasis added]