"An incomplete text of Bṛhadāraṇyakopaniṣad, the concluding part of the Śatapathabrāhmaṇa in two recensions, Kāṇva and Mādhyandinīya. This manuscript has a commentary by Śaṅkarācārya and sub-commentary on his work by Ānandajñāna, from the third to the eighth chapter (the third is incomplete). This continues at 113043_ML03A_2A_4169_CS."
https://samhitalibrary.iicdelhi.in/iiif/2/A2_4__113043_ML03_1A_2A_4169_CS__ML03_1A__ML03_1A -