Mahabharata 14.12.2
शरीरे जायते व्याधिः शारीरो नात्र संशयःमानसो जायते व्याधिर्मनस्येवेति निश्चयः
śarīre jāyate vyādhiḥ śārīro nātra saṃśayaḥmānaso jāyate vyādhirmanasyeveti niścayaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book