Musnad Ahmad

Hazrat Abu Huraira (may Allah be pleased with him) narrates that any prayer in which Surah Al-Fatiha is not recited is incomplete, incomplete, incomplete. And this statement was also made by my beloved (peace be upon him) before me. Then he said: O Farsi! Recite Surah Al-Fatiha, because I heard the Noble Prophet (peace and blessings be upon him) say that Allah Almighty has said: I have divided the prayer between Myself and My servant (and My servant will get what he asks for). So when the servant says, "All praise is due to Allah, Lord of the worlds," Allah Almighty says, "My servant has praised Me." When the servant says, "The Most Gracious, the Most Merciful," Allah Almighty says, "My servant has extolled My greatness or glorified Me." When the servant says, "Master of the Day of Judgment," Allah Almighty says, "My servant has entrusted himself to Me." When the servant says, "You alone we worship and You alone we ask for help," Allah Almighty says, "This is between Me and My servant, and My servant will get what he asks for." Then when the servant recites from "Guide us to the straight path" to the end, Allah Almighty says, "This is for My servant, and what you have asked of Me, you will surely receive." In another narration, it is stated: "My servant will receive what he has asked from Me."