Scholars, however, question the date and authenticity of the story. First, there is evidence that Buddhism was introduced into China prior to the date of 67 given for Emperor Ming's vision. Nor can the sutra be reliably dated to the first century. In 166 C.E., in a memorial to Emperor Huan, the official Xiang Kai referred to this scripture multiple times. For example, Xiang Kai claims that, "The Buddha did not pass three nights under the mulberry tree; he did not wish to remain there long," which is a reference to Section 2 of the scripture. Furthermore, he also refers to Section 24 of the scripture, when Xiang Kai tells the story of a deity presenting a beautiful maiden to the Buddha, to which the Buddha replies that "This is nothing but a leather sack filled with blood." Nonetheless, while these sections seem to mirror the extant edition of the text, it is possible that the edition we now have differs substantially from the version of the text circulating in the second century.