user16223: I have a similar question about the Samādhirāja-sūtra.
Is the Samādhirāja-sūtra, a mahAyAnA sUtra or does it occur in the nikAyas or somewhere else? What is the historically accepted date of this sUtra? Does this sUtra precede nAgArjuna or is it a post-nAgArjuna sUtra?

user2282: It's a Mahayana sutra. Info. about the Samadhiraja sutra from the wiki page here. Full infos. and whole sutra is available here.

16223: <p>I have a similar question about the Samādhirāja-sūtra.</p>

<p>Is the Samādhirāja-sūtra, a mahAyAnA sUtra or does it occur in the nikAyas or somewhere else? What is the historically accepted date of this sUtra? Does this sUtra precede nAgArjuna or is it a post-nAgArjuna sUtra?</p>
 2282: <p>It's a Mahayana sutra. Info. about the Samadhiraja sutra from the wiki page <a href="https://en.wikipedia.org/wiki/Samadhiraja_Sutra" rel="nofollow noreferrer">here</a>. Full infos. and whole sutra is available <a href="http://read.84000.co/data/toh127_84000-the-king-of-samadhis-sutra.pdf" rel="nofollow noreferrer">here</a>.</p>
