Bhagavad Gita 3.41

तस्मात्त्वमिन्द्रियाण्यादौ नियम्य भरतर्षभ।पाप्मानं प्रजहि ह्येनं ज्ञानविज्ञाननाशनम् ॥३.४१॥

tasmāttvamindriyāṇyādau niyamya bharatarṣabhapāpmānaṃ prajahi hyenaṃ jñānavijñānanāśanam

Therefore, O best of the Bharatas, control your senses first and then kill this sinful thing, which destroys knowledge and realization.

गीता