Bhagavad Gita 2.61

Restraining them all, let him steadfastly meditate on Me; for whoever conquers their senses achieves perfection.

तानि सर्वाणि संयम्य युक्त आसीत मत्परः।
वशे हि यस्येन्द्रियाणि तस्य प्रज्ञा प्रतिष्ठिता॥

tāni sarvāṇi saṃyamya yukta āsīta matparaḥ|
vaśe hi yasyendriyāṇi tasya prajñā pratiṣṭhitā||

English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).