Did you try to follow up ref. 1 from the article?

i did, multiple search permutations all came up dry, circling back by linking to this same nautil.us article

I might have found it in PDF (with an annoying download timer) at http://docslide.fr/documents/la-theorie-de-la-relativite-dei... or http://bit.ly/23vLiif (Google Books preview), found via exerpts at http://dialog.ac-reims.fr/wphilo/philoreims/articlesb6fe.htm... which cites Bergson-Einstein, Bulletin de la Société Française de Philosophie, T. XVII, 1922, Paris, A. Colin, p. 25 as the original source. This PDF might still be in copyright, so there might still be better sources out there.

found it, in french:

https://babel.hathitrust.org/cgi/pt?id=uc1.b3075319;view=1up...

which matches your bitly link: http://bit.ly/23vLiif ; and the bitly link has a clearer typeface

also, it seems the pdf is the same document.. well done on the results!

one of your other links led me here:

http://www.2iceshs.cyfronet.pl/2ICESHS_Proceedings/Chapter_2...

from there i got the citation:

The meeting was recounted in the Bulletin de la Société française de Philosophie, vol. 22, no. 3, July 1922, pp. 102–113. It was reprinted in Bergson, Ecrits et Paroles, vol. 3, pp. 497, and in Henri Bergson, ―Discussion avec Einstein,‖ in Mélanges (Paris: Presses Universitaires de France, 1972).

of which i took the Bulletin de la Société française de Philosophie, vol. 22, no. 3, July 1922,

which led me here:

https://catalog.hathitrust.org/Record/000505792

and you can see v17-22(1917-1922) which leads to the above facsimile

you can easily confirm this by searching the text for the quote: Il n’y a donc pas un temps des philosophes ; which will be found on page 107

This is useful - thanks for tracking it down.

credit goes to lstamour