Analysis of information sources in references of the Wikipedia article "Islamic State–Taliban conflict" in English language version.
حافظ خالد نیاز پسر ملا عبدالمنان نیازی (معروف به قصاب شیعیان افغانستان) با انتشار ویدئیی، با امارت اسلامی طالبان اعلام بیعت كرد. [Hafiz Khalid Niazi, son of Mullah Abdul Manan Niazi (known as the Shiite butcher of Afghanistan) released a video declaring his allegiance to the Islamic Emirate.]
The Afghan Taliban's scholars are strict Deobandis and suppressed the Salafist trend when they came to power in Afghanistan in the 1990s.... However, the post-9/11 U.S. invasion of Afghanistan provided Salafists with an opportunity to thrive because the religious duty of defensive war against 'infidel' American invaders forced the Afghan Taliban to ally with Salafists... Salafists, therefore, remained either foot soldiers or part of small groups under the Afghan Taliban's command.
Pashtun Salafist figures convened in Peshawar under the leadership of Shaikh Abdul Aziz Nooristani and Haji Hayatullah, who is the nephew of Shaikh Jamil ur Rehman, and pledged an oath of loyalty to the Afghan Taliban and condemned IS-K. They requested protection from the Afghan Taliban for the Salafist community... Salafists ostensibly are now loyal to the Afghan Taliban
Several former Afghan government troops and intelligence agents have defected to Islamic State, the terrorist group which carried out yesterday's attack on a hospital in Kabul.