In this post in the advaitin list, Prof VK-ji asks a question about the following shloka from Srimad Bhagavatham that Bhishma recites in his final moments:
hRRidi hRRidi dhiShTitaM Atma-kalpitAnAM /
samadhigato’smi vidhUta-bheda-mohaH //
It is verse 1.9.42 from Srimad Bhagavatham. An explanation of this stotra by Prof VK-ji is here.
Shri Sunder-ji responds and so does Subbu-ji in this post.
You can listen to an audio rendition of the entire Bhishma Stuti by Pt. Sunder Kidambi here.