حَدَّثَنَا الْقَعْنَبِيُّ، عَنْ مَالِكٍ، عَنِ الْعَلاَءِ بْنِ عَبْدِ الرَّحْمَنِ، أَنَّهُ سَمِعَ أَبَا السَّائِبِ، مَوْلَى هِشَامِ بْنِ زُهْرَةَ يَقُولُ سَمِعْتُ أَبَا هُرَيْرَةَ، يَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ مَنْ صَلَّى صَلاَةً لَمْ يَقْرَأْ فِيهَا بِأُمِّ الْقُرْآنِ فَهِيَ خِدَاجٌ فَهِيَ خِدَاجٌ فَهِيَ خِدَاجٌ غَيْرُ تَمَامٍ ‏"‏ ‏.‏ قَالَ فَقُلْتُ يَا أَبَا هُرَيْرَةَ إِنِّي أَكُونُ أَحْيَانًا وَرَاءَ الإِمَامِ ‏.‏ قَالَ فَغَمَزَ ذِرَاعِي وَقَالَ اقْرَأْ بِهَا يَا فَارِسِيُّ فِي نَفْسِكَ فَإِنِّي سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ ‏"‏ قَالَ اللَّهُ تَعَالَى قَسَمْتُ الصَّلاَةَ بَيْنِي وَبَيْنَ عَبْدِي نِصْفَيْنِ فَنِصْفُهَا لِي وَنِصْفُهَا لِعَبْدِي وَلِعَبْدِي مَا سَأَلَ ‏"‏ ‏.‏ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ اقْرَءُوا يَقُولُ الْعَبْدُ ‏ Begin hadith 0‏ يَقُولُ اللَّهُ عَزَّ وَجَلَّ حَمِدَنِي عَبْدِي يَقُولُ الْعَبْدُ ‏ End hadith 9‏ يَقُولُ اللَّهُ عَزَّ وَجَلَّ أَثْنَى عَلَىَّ عَبْدِي يَقُولُ الْعَبْدُ ‏ End hadith 8‏ يَقُولُ اللَّهُ عَزَّ وَجَلَّ مَجَّدَنِي عَبْدِي يَقُولُ الْعَبْدُ ‏ End hadith 7‏ يَقُولُ اللَّهُ وَهَذِهِ بَيْنِي وَبَيْنَ عَبْدِي وَلِعَبْدِي مَا سَأَلَ يَقُولُ الْعَبْدُ ‏ End hadith 6‏ يَقُولُ اللَّهُ فَهَؤُلاَءِ لِعَبْدِي وَلِعَبْدِي مَا سَأَلَ ‏"‏ ‏.‏

Abu Hurairah reported the Messenger of Allah (May peace be upon him) as saying: If anyone observes a prayer in which he does not recite Umm al-Qur’an, it is incomplete, it is incomplete, it is incomplete, and deficient. (The narrator said) I said: Abu Hurairah, sometime I pray behind the imam(then what should I do)? Pressing my hand he replied: O Persian, recite it inwardly, for I heard the Messenger of Allah (PBUH) as saying that Allah, Most High, has said: I have Me and the Half for my servant and My servant will receive what he asks. The Messenger of Allah(PBUH) said: Recite. When the servant says: “praise be to Allah, the Lord of the Universe,” Allah, Most High says: “My servant has praised me.” When the servant says: “ The Compassionate, the merciful, “Allah Most High says: “My servant has lauded me.” When the servant says: “Owner of the Day of Judgment,” Allah, Most High, says: “My servant has glorified Me” When the servant says: “ Thee do we worship and of thee we ask help. “ (Allah says) “This is between Me and My servant, and My servant will receive what he asks.” When the servant says: “ Guide us to the Straight Path, the path of those whom thou hast favoured, not ( the path) of those who earn thine anger nor of those who go astray,”(Allah says: ) “This is for My servant, and My servant will receive what he asks.” Translation Not Available

Book Ref: Sunan Abi Dawud Book 2 Hadith 821
Web Ref:  Sunan Abi Dawud Book 2 Hadith 820