Hence , the authenticity of this story is questionable .
However , scholars like Richard Nelson Frye pointed out that Qutaiba ibn Muslim did n't live at the time of Umayyad Caliph Mu'awiya , as this story suggest , but rather much much later .
The authenticity of this story is questionable .
However , scholars like Richard Nelson Frye pointed out that Qutaiba ibn Muslim did n't live at the time of Umayyad Caliph Mu'awiya , as this story suggest , but rather much much later .