Aḥmad ibn Yaḥyá al-Balādhurī, The Origins of the Islamic State… (1916)
“ If the 'Commander of the Believers' thinks it best to allow us to invade the latter, it will be well." ʿUmar wrote back, ordering him not to go, saying, "This should not be called Ifrîḳiyah, but Mufarriḳah, [3] which is treacherous to others, and to which others are treacherous." ”
