Musulmai sun ci yankuna domin isar da da'war Musulunci ga mutanensu. Yadda ake isar da da'war Musulunci yana bukatar kasancewar wani motsi na al'adu. Wannan saboda Musulunci sako ne da ke bukatar nazari, bincike da karatu, kuma tsarinsa da kansa yana bukatar a yi nazarinsa a fahimce shi. Yana bukatar wanda ya yi imani da shi ya yi nazarin duk abin da zai iya daga darajar rayuwa. Saboda haka, yawancin mutanen da suka bude yankuna malamai ne (ulama), kwararru a karatun Alkur'ani (qari'ai), da masu rubutu (katibai). Malamai, masu karatu da marubuta ne suka rakaka su, domin koyarwa a yankunan da aka ci, domin a kowane yankin da aka ci ana gina masallaci don sallah da koyar da maza, mata da yara. Malamai ne suka dauki nauyin koyar da mutane Alkur'ani, hadisi da ahkami. Haka kuma sun dauki nauyin yada Musulunci. Don haka, motsin al'adu ya nufi koyarwa da yada Musulunci. Motsi ne na al'adun Musulunci. Duk da haka, baya ga haka, yana kuma kunshe da bangarori na tarihi, harshe da adabi.

The Muslims conquered lands in order to carry the Islamic Da’wah to its people. The nature of carrying the Islamic Da’wah necessitates the presence of a cultural movement. This is because Islam is a message which requires study, research and reading and since its very nature necessitates that it is studied and understood. It requires the one who has conviction in it to study anything that has an effect in elevating the standard of life. Thus, many of those people who opened up lands were scholars (ulama), proficient in the recitation of the Qur’ān (qari’een), and those who could write (katibeen). They were accompanied by the scholars, reciters and scribes so as to teach in the newly conquered lands because in every conquered land a mosque would be built for prayer and for the purpose of teaching men, women and children. The Ulama were the ones who assumed the responsibility of teaching the people the Qur’ān, hadīth and ahkām. They also assumed the responsibility of spreading Islam. Thus, the cultural movement aimed at teaching and spreading Islam. It was an Islamic cultural movement. However, in addition to that it also used to include historical, linguistic and literary aspects.