The Messenger of Allah ﷺ said, "Whoever recites the Quran, commits it to memory, treats its lawful as lawful and its forbidden as forbidden, Allah will admit him to Paradise through it and grant him intercession for ten members of his household, each of whom had been destined for the Fire."
حدثنا علي بن حجر أخبرنا حفص بن سليمان عن كثير بن زاذان عن عاصم بن ضمرة
قال رسول الله ﷺ من قرأ القرآن واستظهره فأحل حلاله وحرم حرامه أدخله الله به الجنة وشفعه في عشرة من أهل بيته كلهم قد وجبت له النار
Its isnad is very daif. Ibn Majah also narrated it in the Introduction, Chapter on the Merit of One Who Learns the Quran and Teaches It, hadith 216, from the hadith of Abu Umar Hafs bin Sulayman the reciter, and he is "discarded in hadith despite his mastery in recitation" (Taqrib), and Kathir bin Zazan is also unknown.