B.G 4.42
tasmādajñānasambhūtaṁ hr̥tsthaṁ jñānāsinā'tmanaḥ। chittvainaṁ saṁśayaṁ yogamātiṣṭhottiṣṭha bhārata ॥42॥
O Arjuna, therefore, cut off this doubt and wrong knowledge that has engulfed your heart with the sword of knowledge. Situating yourself in Yoga, arise (to fight).
Gīta Tātparya 4.42
॥ iti śrīmadānandatīrthabhagavatpādācāryaviracite śrībhagavadgītātātparyanirṇaye caturthodhyāyaḥ॥
Thus ends the Fourth Chapter in the Bhagavad Gita Purport authored by the revered Ānandatīrtha Bhagavatpāda.
॥ oṁ tatsaditi śrīmadbhagavadgītāsu upaniṣatsu brahmavidyāyāṁ yogaśāstre śrīkr̥ṣṇārjunasaṁvāde jñānayogo nāma caturthodhyāyaḥ ॥
"Om Tat Sat - Thus in the Śrīmad Bhagavad Gītā, in the Upaniṣads, in the science of Brahman, in the Yoga scripture, in the dialogue between Śrī Kṛṣṇa and Arjuna, the fourth chapter called 'Jñāna Yoga', i.e. 'The Yoga of Knowledge' concludes."