mention Zurvan at all.

Of the remaining so-called Pahlavi books, only two, the Menog-i Khrad and the Selections of Zadspram (both 9th century) reveal a Zurvanite tendency. The latter, in which the priest Zadspram chastises his brother's un-Mazdaean ideas, is the last text in Middle Persian that provides any evidence of the cult of Zurvan.