In the realm of knowledge Shukri held that there is no science except in God . . . . The Muslim is obligated to seek his path and knowledge before God alone , and so-called knowledge , which is actually no knowledge at all because it is not founded in the Lord , is forbidden . Since the Quran teaches that " God knows and you know not " , this meant ( according to Shukri ) that all learning came after the Quran and Sunna was not legitimate knowledge . This included even the traditional Sunni four schools ( Madh ' hab ) of fiqh . Since the Quran was delivered in Arabic , it was clear to all Arabs who would only need a good dictionary to explain the meaning of some of its terms ( according to Shukri ) . " Shukri also rejected the Egyptian public school system , telling his interrogators that The teaching of writing for its own sake is Haraam ( sinful ) ... The Prophet did not open kuttab and institutions to teach Muslims writing and arithmetic , but permitted them to be taught according to needs and necessities . According to journalist Robin Wright the group reorganized and within a year of Mustafa 's death membership was estimated " to be as high as 4000 . " Many succeeding militant Islamists and Islamist groups have been designated Takfir wal-Hijra by authorities . Both Osbat al-Ansar in Lebanon and the GIA in Algeria were initially described as Takfir wal-Hijra cells . Kassem Daher , the killers of mosque worshippers in Sudan in 2000 , the killer of Dutch filmmaker Theo Van Gogh and a 2011 group of Egyptian gunmen , have been called Takfir wal-Hijra or connected with Takfir wal-Hijra in some way
mosque worshippers
2000 Jarafa mosque massacre
Jama'at al-Muslimin