Bhagavad Gita 3.43
Thus, O Mighty-Armed One, knowing Him to be beyond the intellect, and with His help, subdue your personal ego and kill your enemy, Desire, even though it is extremely difficult.
एवं बुद्धेः परं बुद्ध्वा संस्तभ्यात्मानमात्मना।
जहि शत्रुं महाबाहो कामरूपं दुरासदम्॥evaṃ buddheḥ paraṃ buddhvā saṃstabhyātmānamātmanā|
jahi śatruṃ mahābāho kāmarūpaṃ durāsadam||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).