Shrimad Bhagavad Gita
तस्माच्छास्त्रं प्रमाणं ते कार्याकार्यव्यवस्थितौ । ज्ञात्वा शास्त्रविधानोक्तं कर्म कर्तुमिहार्हसि ॥ १६-२४॥
Therefore, Shaastra ( the scripture ) is your authority as regards the determination of what is to be done and what is not to be done. After understanding (your) duty as presented by Shaastravidhi ( scriptural injunction ), you ought to perform (your duty) here.
english translation
अतः तेरे लिये कर्तव्य-अकर्तव्यकी व्यवस्थामें शास्त्र ही प्रमाण है -- ऐसा जानकर तू इस लोकमें शास्त्र-विधिसे नियत कर्तव्य कर्म करनेयोग्य है।
hindi translation
tasmAcchAstraM pramANaM te kAryAkAryavyavasthitau । jJAtvA zAstravidhAnoktaM karma kartumihArhasi ॥ 16-24॥
hk transliteration by Sanscript