وَنَزَّلْنَا عَلَيْكَ الْكِتَـبَ تِبْيَانًا لِّكُلِّ شَىْءٍ
(And We revealed the Book (the Qur'an) to you as an explanation of everything,) Ibn Mas`ud said: â€ï´¿Allahï´¾ made it clear that in this Qur'an there is complete knowledge and about everything.'' The Qur'an contains all kinds of beneficial knowledge, such as reports of what happened in the past, information about what is yet to come, what is lawful and unlawful, and what people need to know about their worldly affairs, their religion, their livelihood in this world, and their destiny in the Hereafter.