UtshovBhagavad Gita 16.24
तस्माच्छास्त्रं प्रमाणं ते कार्याकार्यव्यवस्थितौ।ज्ञात्वा शास्त्रविधानोक्तं कर्म कर्तुमिहार्हसि।।16.24।।
Tasmachchhastram pramanam te karyakaryavyavasthitau, gyatva shastravidhanoktam karma kartumiharhasi
Simple meaning, written by AITherefore, the scriptures are the authority for what is permissible or forbidden; having understood this, you must act according to the scriptural injunctions.