The works of Ādi Śaṅkarācārya

Taittirīyopaniṣadbhāṣyam

Verse 14

वेदमन्ूच्याचार्योऽन्तेवासिनमनुशा-स्ति ।सत्य वद ।धर्म चर ।स्वाध्याया-न्मा प्रमद ।आचार्याय प्रिय धनमाहृत्यप्रजातन्तु मा व्यवच्छेत्सी ।सत्यान्नप्रमदितव्यम् ।धर्मान्न प्रमदितव्यम् ।कुशलान्न प्रमदितव्यम् ।भूत्यै न प्रम-दितव्यम् ।स्वाध्यायप्रवचनाभ्या नप्रमदितव्यम् ॥ १ ॥

In plain words

Having imparted the Veda, the teacher gives his departing student these final instructions: Speak the truth. Practice righteousness. Never be negligent in your study of the sacred texts. Having offered a pleasing gift of wealth to your preceptor, do not cut off the thread of your lineage. Never stray from truth. Never stray from righteousness. Never neglect your well-being, your prosperity, or your study and teaching.

Close to the Sanskrit

Having taught the Veda, the preceptor instructs the pupil. Speak the truth. Practice righteousness. Do not neglect study. Having brought a pleasing gift of wealth to the preceptor, do not cut off the thread of progeny. There must be no negligence regarding truth. There must be no negligence regarding righteousness. There must be no negligence regarding welfare. There must be no negligence regarding prosperity. There must be no negligence regarding study and teaching.