Bhagavad Gita 18.4
O best of Indians! Listen to my judgment regarding this problem. It has a threefold aspect.
निश्चयं श्रृणु मे तत्र त्यागे भरतसत्तम।त्यागो हि पुरुषव्याघ्र त्रिविधः संप्रकीर्तितः॥niścayaṃ śrṛṇu me tatra tyāge bharatasattama|tyāgo hi puruṣavyāghra trividhaḥ saṃprakīrtitaḥ||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).