Bhagavad Gita 6.22

यं लब्ध्वा चापरं लाभं मन्यते नाधिकं ततः।यस्मिन्स्थितो न दुःखेन गुरुणापि विचाल्यते ॥६.२२॥

yaṃ labdhvā cāparaṃ lābhaṃ manyate nādhikaṃ tataḥyasminsthito na duḥkhena guruṇāpi vicālyate

Having obtained it, he thinks there is no other gain superior to it; established in it, he is not moved even by heavy sorrow.

गीता