‘Alī reported God’s messenger as saying, “If anyone recites the Qur’ān, learns it by heart, declares what is lawful in it to be lawful and what is unlawful in it to be unlawful, God will bring him into paradise and make him intercessor for ten of his family all of whom have deserved hell.”
Ahmad, Tirmidhī, Ibn Majah and Dārimī transmitted it, Tirmidhī saying that this is a gharīb tradition, and that Hafs b. Sulaīmān the transmitter is not strong, but is declared to be a weak traditionist.
When God’s Messenger once asked Ubayy b. Ka'b how he recited in the course of the prayer and he recited Umm al- Qur’ān (Al-Qur’ān 1) , he said, “By Him in whose hand my soul is, nothing like it has been sent down in the Torah, the Injīl, the Zabūr, or the Qur’ān, and it is seven of the oft-repeated verses and the mighty Qur’ān (Qur’ān, 15:87) which I have been given.”
Tirmidhī transmitted it, and Dārimī transmitted from “nothing like it has been sent down,” but he did not mention Ubayy b. Ka‘b. Tirmidhī said this is a hasan sahīh tradition.
Mu'ādh al-Juhani reported God’s messenger as saying, “If anyone recites the Qur’ān and acts according to its contents, on the day of resurrection his parents will be given to wear a crown whose light is better than the light of the sun in the dwellings of this world if it were among you. So what do you think of him who acts according to this?”