Shalat mencegah kejahatan.
1..." Bacalah apa yang telah diwahyukan kepadamu, yaitu Al Kitab (Al Quran) dan dirikanlah shalat. Sesungguhnya shalat itu mencegah dari (perbuatan- perbuatan) keji dan mungkar. Dan sesungguhnya mengingat Allah (shalat) adalah lebih besar (keutamaannya dari ibadat-ibadat yang lain). Dan Allah mengetahui apa yang kamu kerjakan."
2.."Sebenarnya, Al Quran itu adalah ayat-ayat yang nyata di dalam dada orang-orang yang diberi ilmu. Dan tidak ada yang mengingkari ayat-ayat Kami kecuali orang-orang yang zalim"
4..I heard Allah's Apostle saying, "There will appear some people among you whose prayer will make you look down upon yours, and whose fasting will make you look down upon yours, but they will recite the Qur'an which will not exceed their throats (they will not act on it) and they will go out of Islam as an arrow goes out through the game whereupon the archer would examine the arrowhead but see nothing, and look at the unfeathered arrow but see nothing, and look at the arrow feathers but see nothing, and finally he suspects to find something in the lower part of the arrow."
Malik :: Book 15 : Hadith 15.5.16Yahya related to me from Malik from Hisham ibn Urwa from his father that Umar ibn al-Khattab once recited a piece of Qur'an requiring a prostration while he was on the mimbar on the day of jumua, and he came down and prostrated, and everyone prostrated with him. Then he recited it again the next jumua and everybody prepared to prostrate but he said, "At your ease. Allah has not prescribed it for us, unless we wish." He did not prostrate, and he stopped them from prostrating.
Malik said, "The imam does not come down and prostrate when he recites a piece of Qur'an requiring a prostration while he is on the mimbar."
Malik said, "The position with us is that there are eleven prescribed prostrations in the Qur'an, none of which are in the mufassal."
Malik said, "No-one should recite any of the pieces of Qur'an that require a prostration after the prayers of subh and asr. This is because the Messenger of Allah, may Allah bless him and grant him peace, forbade prayer after subh until after the sun had risen, and after asr until the sun had set, and prostration is part of the prayer. So no-one should recite any piece of Qur'an requiring a prostration during these two periods of time."
Malik was asked whether a menstruating woman could prostrate if she heard some-one reciting a passage of Qur'an requiring a prostration, and he said, "Neither a man nor a woman should prostrate unless they are ritually pure."
Malik was asked whether a man in the company of a woman who was reciting a passage of Qur'an requiring a prostration should prostrate with her, and he said, "He does not have to prostrate with her. The prostration is only obligatory for people who are with a man who is leading them. He recites the piece and they prostrate with him. Some one who hears a piece of Qur'an that requires a prostration being recited by a man who is not leading him in prayer does not have to do the prostration."