The name "Dara" for the Persian princess in Christian sources occurs also as that of Chosroes' daughter. The legend glorifying Bostanai probably originated in Babylon, while the genizah fragment, branding all the descendants of Bostanai as illegitimate, being descendants of a slave and unworthy to fill high office, comes from Palestine. This latter view is of course erroneous, as may be gathered from Hai's remark, above mentioned, for the post-Bostanaite house of exilarchs was not descended from the princess. It is true, however, that the Bostanaites were hated by the scholars and the pious men, probably in part because Anan, founder of the Karaite etc., was a descendant of Bostanai. Benjamin of Tudela says that he was shown the grave of Bostanai near Pumbedita.