And it does not beseem the believers that they should go forth all together; why should not then a company from every party from among them go forth that they may apply themselves to obtain understanding in religion, and that they may warn their people when they come back to them that they may be cautious?

He has made plain to you of the religion what He enjoined upon Nuh and that which We have revealed to you and that which We enjoined upon Ibrahim and Musa and Isa that keep to obedience and be not divided therein; hard to the unbelievers is that which you call them to; Allah chooses for Himself whom He pleases, and guides to Himself him who turns (to Him), frequently.