Manusmriti

siva.sh/manusmriti/5/109

अद्भिर्गात्राणि शुध्यन्ति मनः सत्येन शुध्यति । विद्यातपोभ्यां भूतात्मा बुद्धिर्ज्ञानेन शुध्यति ॥ १०९ ॥

sanskrit

The body is cleansed by water, the internal organ is purified by truthfulness, the individual soul by sacred learning and austerities, the intellect by (true) knowledge.

english translation

adbhirgAtrANi zudhyanti manaH satyena zudhyati | vidyAtapobhyAM bhUtAtmA buddhirjJAnena zudhyati || 109 ||

hk transliteration by Sanscript