The US military has said in the past that Wilayah Khorasan was in contact with the Islamic State’s mothership. And Razzaq’s testimony is consistent with this assessment, as he tells his Taliban interviewer that he was initially tasked with overseeing its international communications.
“My first duty in Daesh [Islamic State] was communication director between Iraq and Afghanistan and with the passage of time, I was named the deputy leader for Khorasan province,” Razzaq says.
The Taliban interviewer asks Razzaq why he defected.
“The reasons for which I broke with the group Daesh and pledged allegiance to…Hibatullah Akhundzada, the leader of the Islamic Emirate [of Afghanistan], was because those appointed as leaders in Daesh group committed crimes,” Razzaq replies. “For example, they loot the homes of people under the name of Ghanimah (war spoils). When I did my research, I found that this was not Ghanimah, rather they plundered homes of people under the name of Ghanimah and their hands were deep in murder.” Razzaq emphasizes: “They had murdered people whom I found not to be criminals even in the rules of Daesh.”
“They were also very ignorant,” Razzaq continues. “They did not have a system where one could make the other understand. A young student would get up and implement a Shariah ruling.” In addition, there was “a prevailing ignorance and their people were ignorant and therefore I left them and joined the Islamic Emirate to continue my jihad.”
Razzaq explains that he had served the Taliban previously. “I had rendered many sacrifices in the Islamic Emirate before and I understood that Daesh cannot benefit me and is not the place of Jihad.”
https://www.longwarjournal.org/archives/2017/12/taliban-touts-defection-of-islamic-state-deputy.php