In derush 25 which "had previously only appeared in a censored form" (Rabbi Dr. Marc Shapiro, Concerning the Zohar and Other Matters) in Derushei HaTzlach, Warsaw 1886 (Shapiro in Milin Havivin Volume 5 [2011], Is there an obligation to believe that Rebbe Shimon bar Yochai wrote the Zohar?, p. ה [PDF page 126], footnote 13 [Hebrew]).
In derush 25 which "had previously only appeared in a censored form" (Rabbi Dr. Marc Shapiro, Concerning the Zohar and Other Matters) in Derushei HaTzlach, Warsaw 1886 (Shapiro in Milin Havivin Volume 5 [2011], Is there an obligation to believe that Rebbe Shimon bar Yochai wrote the Zohar?, p. ה [PDF page 126], footnote 13 [Hebrew]).
An Analysis of the Authenticity of the Zohar (2005), p. 39, with "Rav E" and "Rav G" later identified by the author as Rabbi Eliyahu Dessler and Rabbi Gedaliah Nadel, respectively (Rabbi Dr. Marc Shapiro in Milin Havivin Volume 5 [2011], Is there an obligation to believe that Rebbe Shimon bar Yochai wrote the Zohar?, p. יב [PDF page 133]):
"I approached Rav A [Aryeh Carmell] with some of the questions on the Zohar, and he responded to me - 'and what about nikud? Nikud is also mentioned in the Zohar despite the fact that it [is] from Geonic times!' he said. I later found this comment in the Mitpachas Seforim. I would just add that not only is nikud mentioned, but only the Tiberian Nikkud - the norm in Europe of the middle ages - is mentioned and not the Yerushalmi nikud or the Babylonian one — which was used then in the Middle East, and is still used by Yemenites today. Also the Taamay Hamikrah - the trop - are referred to in the Zohar - only by their Sefardi Names. Rav A told me a remarkable piece of testimony: 'My rebbe (this is how he generally refers to Rav E [Elijah Dessler]) accepted the possibility that the Zohar was written sometime in the 13th century.'"
"Rav G [Gedaliah Nadel] told me that he was still unsure as to the origin and status of the Zohar, but told me it was my absolute right to draw any conclusions I saw fit regarding both the Zohar and the Ari."
In derush 25 which "had previously only appeared in a censored form" (Rabbi Dr. Marc Shapiro, Concerning the Zohar and Other Matters) in Derushei HaTzlach, Warsaw 1886 (Shapiro in Milin Havivin Volume 5 [2011], Is there an obligation to believe that Rebbe Shimon bar Yochai wrote the Zohar?, p. ה [PDF page 126], footnote 13 [Hebrew]).
Shevuth Teiman, Yisrael Yeshayahu & Aharon Tzadok, Tel-Aviv 1945, p. 216 (Hebrew), who brings down this teaching in the name of Shemuel b. Yosef Adeni, author of Naḥalath Yosef, who brings down the teaching in the name of Sefer HaBrit. The concept is further explained in Rabbi Qafih's seminal work, Milhamot Hashem, chapter 30 (Hebrew).
