► Allah says, "O mankind! There has come to you a good advice from your Lord (i.e. the Qur'an, ordering all that is good and forbidding all that is evil), and a healing for that (disease of ignorance, doubt, hypocrisy and differences, etc.) in your hearts, - a guidance and a mercy (explaining lawful and unlawful things, etc.) for the believers." [Al Quran: 10:57]

 
► "There has come to you from Allah a light and a clear Book. By which Allah guides those who pursue His pleasure to the ways of peace and brings them out from darkness into the light, by His permission, and guides them to a straight path." [Al Qur'an 5:14-15]