Reading and lookin to Quran
Al-Sheikh Al-Kulaini states in Al-Kafi Book: Yaqoub bin Zaid reported from Imam Abou Abdellah (Pbuh) that he said: "He who recites Quran, shall fell pleasure with his sight and the torment of his parents shall be lessened even if they were infidels."
It is also stated by Al-Sadouq in Thawab Al-A'amal Book.
Al-Sheikh Al-Kulaini states in Al-Kafi Book: Hammad bin Issa reported from Imam Abou Abdellah (Pbuh): "I like it when there is a Quran in the house by which Allah evicts demons."
Al-Sheikh Al-Kulaini states in Al-Kafi Book: Is'haq bin Ammar reported that he said to Imam Abou Abdellah (Pbuh): "May I be sacrificed for your sake, I memorize Quran by heart. I recite it by heart or is it better to look at it?" He (Pbuh) said: "Yet read it and look at it. It is better. Don’t you know that looking at Quran is worship?"
Al-Sheikh Jaa'far bin Ahmad Al-Qummi states in Al-Musalsalat Book: Abdellah bin Masoud reported that he had conjunctivitis and so he complained about that to the Messenger of Allah (Pbuhp). He (Pbuhp) said to him: "Look frequently and continuously at Quran because I also had conjunctivitis and I complained about it to Jibraeel and so he said to me:" Look frequently and continuously at Quran""
Al-Ghayat Book:The Messenger of Allah (Pbuhp) said: "The best worship is reading Quran."
Jami' Al-Akhbar Book:Imam Ali (Pbuh) said: "Reading Quran from the book is better than reading by heart."
Al-Sheikh Abou Al-Fotouh Al-Razy states in his Tafseer Book: Saleel reported that he heard the Messenger of Allah (Pbuhp) say: "For he who reads Quran from the book, Allah eases the torment of his parents even if they were polytheists. He who recites Quran and memorizes it then think that Allah will not forgive him is considered to have ridiculed the signs and verses of Allah."