Caitanya-caritāmṛta 6.133
upaniṣad-śabde yei mukhya artha haya sei artha mukhya, — vyāsa-sūtre saba kaya
[upanishad-shabde yei mukhya artha haya sei artha mukhya, — vyaasa-sootre saba kaya]
Blended reading (Sanskrit + English inline)
upaniṣad-śabde yei mukhya artha haya sei artha mukhya, — vyāsa-sūtre saba kaya
Caitanya Mahāprabhu continued, “The Vedānta-sūtra is the summary of all the Upaniṣads; therefore whatever direct meaning is there in the Upaniṣads is also recorded in the Vedānta-sūtra, or Vyāsa-sūtra.
Purport
Śrīla Bhaktisiddhānta Sarasvatī has explained the word upaniṣad in his Anubhāṣya. Please refer to Ādi-līlā, second chapter, fifth verse, and Ādi-līlā, seventh chapter, verses 106 and 108, for his explanation.
— A.C. Bhaktivedanta Swami Prabhupāda
My note
Source: vedabase.io