Mahabharata 10.5.8
स कल्याणे मतिं कृत्वा नियम्यात्मानमात्मनाकुरु मे वचनं तात येन पश्चान्न तप्यसे
sa kalyāṇe matiṃ kṛtvā niyamyātmānamātmanākuru me vacanaṃ tāta yena paścānna tapyase
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book