Mahabharata 12.193.7

राजोवाचयद्येवमफला सिद्धिः श्रद्धा च जपितुं तवगच्छ विप्र मया सार्धं जापकं फलमाप्नुहि

rājovācayadyevamaphalā siddhiḥ śraddhā ca japituṃ tavagaccha vipra mayā sārdhaṃ jāpakaṃ phalamāpnuhi

Our plain-language meaning of this verse is waiting for scholar review.