Ibn Khordadbeh
Ibn Khordadbeh (c. 820 – 912 CE), Mahmud al-Kashgari (11th century), Muhammad al-Idrisi (1100–1165), and many other Muslim scholars agree that the Pechenegs belonged to the Turkic peoples. The "Russian Primary Chronicle" stated that the "Torkmens, Pechenegs, Torks, and Polovcians" descended from "the godless sons of Ishmael, who had been sent as a chastisement to the Christians".