Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that when the Messenger of Allah (peace and blessings be upon him) would raise his back from bowing (ruku‘), he used to say «‏‏‏‏سَمِعَ اللهُ لِمَنْ حَمِدَهُ» ‏‏‏‏. Then, while standing, he would recite «‏‏‏‏رَبَّنَا وَلَكَ الحَمْدُ» ‏‏‏‏.

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that when the Noble Prophet (peace and blessings be upon him) would begin the prayer, he would say «‏‏‏‏اللهُ أَكْبَرُ» ‏‏‏‏. (Both of the honorable teachers of the Imam) narrated a part of the hadith and said that when the Prophet (peace and blessings be upon him) would raise his head from bowing (ruku‘), he would recite this supplication «‏‏‏‏سَمِعَ اللهُ لِمَنْ حَمِدَهُ، رَبَّنَا وَلَكَ الحَمْدُ، مِلْءَ السَّمواتِ والأرضِ، ومِلْءَ ما شِئتَ مِن شيءٍ بعدُ» ‏‏‏‏:“Allah has heard the one who praised Him. O our Lord, to You belongs all praise, filling the heavens, filling the earth, and filling whatever else You will after that (all praise is Yours).”

It is narrated from Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) that when the Messenger of Allah (peace and blessings be upon him) would say «‏‏‏‏سَمِعَ اللهُ لِمَنْ حَمِدَهُ» ‏‏‏‏, he used to recite this supplication: «‏‏‏‏اللَّهُمَّ رَبَّنَا لَكَ الْحَمْدُ مِلْءُ السَّمَاوَاتِ وَالْأَرْضِ وَمِلْءُ مَا شِئْتَ مِنْ شَيْءٍ بَعْدُ، أَهْلَ الثَّنَاءِ وَالمَجْدِ، أَحَقُّ مَا قَالَ الْعَبْدُ، وَكُلُّنَا لَكَ عَبْدٌ، لَا مَانِعَ لِمَا أَعْطَيْتَ، وَلَا يَنْفَعُ ذَا الْجَدِّ مِنْكَ الْجَدُّ» ‏‏‏‏ "O Allah, O our Lord, all praise and glorification is for You, filling the heavens and filling the earth and filling whatever else You will after that (all praise is for You). You are worthy of praise and greatness. The servant has spoken the truest word, and we are all Your servants. (That is) whatever You grant, none can withhold it, and whatever You withhold, none can grant it, and the wealth of the wealthy will not benefit them against You." (Both) the honorable teachers of the Imam have narrated in the same manner, but Ahmad said: «‏‏‏‏رَبَّنَا لَكَ الْحَمْدُ» ‏‏‏‏ (that is, he narrated «‏‏‏‏اللَّهُمَّ» ‏‏‏‏ without the conjunction "wa"). The Imam has narrated the above-mentioned narration from his teacher Muhammad bin Yahya with this chain. In it, there is this additional wording: «‏‏‏‏وَلَا مُعْطِيَ لِمَا مَنَعْتَ» ‏‏‏‏ "Whatever You withhold, none can grant it."

With this evidence that the statement of the Noble Prophet صلی اللہ علیہ وسلم : "When the Imam says 'Sami' Allahu liman hamidah', you should say 'Rabbana lakal hamd'"—by this, the Prophet صلی اللہ علیہ وسلم did not mean that after the Imam raises his head from bowing, he cannot recite anything more than 'Rabbana lakal hamd'.

It is narrated from Sayyiduna Rifa’ah bin Rafi’ (may Allah be pleased with him) that he said: One day we were praying behind the Messenger of Allah (peace and blessings of Allah be upon him). Then when he raised his head from bowing (ruku’), he said: «‏‏‏‏سَمِعَ اللهُ لِمَنْ حَمِدَهُ» ‏‏‏‏, so a man standing behind the Messenger of Allah (peace and blessings of Allah be upon him) recited this supplication: «‏‏‏‏رَبَّنَا وَلَكَ الحَمْدُ حَمْدًا كَثِيرًا طَيِّبًا مُبَارَكًا فِيهِ» ‏‏‏‏“O our Lord, to You belongs all praise, abundant, pure, and blessed praise (is for You).”Then when the Messenger of Allah (peace and blessings of Allah be upon him) finished the prayer with salam, he asked:“Who just spoke?”That person replied:“I did.”So the Messenger of Allah (peace and blessings of Allah be upon him) said:“Indeed, I saw more than thirty angels rushing to see who would write down these words first.”

Therefore, the imam will supplicate in the standing position after rising from bowing in the last unit of the obligatory prayer.

Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that when the Messenger of Allah (peace and blessings be upon him) raised his head from the bowing (ruku) of the last (rak‘ah), he supplicated: «‏‏‏‏اللَّهُمَّ أَنْجِ الْوَلِيدَ بْنَ الْوَلِيدِ، وَسَلَمَةَ بْنَ هِشَامٍ، وَعَيَّاشَ بْنَ أَبِي رَبِيعَةَ، وَالْمُسْتَضْعَفِينَ بِمَكَّةَ» ‏‏‏‏ "O Allah, grant deliverance to Abu Walid bin Al-Walid, Salamah bin Hisham, ‘Ayyash bin Abi Rabi‘ah, and the helpless and weak ones (present) in Makkah Al-Mukarramah." Ahmad has narrated this addition in his narration: «‏‏‏‏اللَّهُمَّ اشْدُدْ وَطْأَتَكَ عَلَى مُضَرَ، وَاجْعَلْهَا عَلَيْهِمْ سِنِينَ كَسِنِي يُوسُفَ» ‏‏‏‏ "From among the Muslims, (send down Your severe punishment upon the weak ones of Mudar and impose upon them a famine like the famine during the time of Yusuf, peace be upon him." Imam Abu Bakr (may Allah have mercy on him) says: I have mentioned this entire chapter in the Book of Salah of Al-Kabir.

Sayyiduna Ibn Abi Layla says that I heard Sayyiduna Bara’ bin Azib (may Allah be pleased with him) say that the Messenger of Allah (peace and blessings be upon him) used to perform Qunoot in the Maghrib and Fajr prayers.

It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that when the Messenger of Allah (peace and blessings be upon him) performed the ‘Isha prayer, he would raise his head after bowing (ruku‘) and say «‏‏‏‏سَمِعَ اللهُ لِمَنْ حَمِدَهُ» ‏‏‏‏, then he would recite the Qunoot and supplicate: «‏‏‏‏اللَّهُمَّ أَنْجِ عَيَّاشَ بْنَ أَبِي رَبِيعَةَ، اللَّهُمَّ أَنْجِ سَلَمَةَ بْنَ هِشَامٍ، اللَّهُمَّ أَنْجِ الْوَلِيدَ بْنَ الْوَلِيدِ، اللَّهُمَّ أَنْجِ الْمُسْتَضْعَفِينَ مِنَ الْمُؤْمِنِينَ مِنَ أَھْلِ مَكَّةَ، اللَّهُمَّ أشْدُدْ وَطْأَتَكَ عَلَى مُضَرَ، اللَّهُمَّ اجْعَلْهَا عَلَيْهِمْ سِنِينَ كَسِنِي يُوسُفَ» ‏‏‏‏“O Allah, grant salvation to ‘Ayyash bin Abi Rabi‘ah. O Allah, grant freedom to Salamah bin Hisham. O Allah, grant release to Walid bin Walid. O Allah, grant salvation to the weak believers among the people of Makkah. O Allah, make Your grip severe upon Mudar. O Allah, inflict upon them a famine like the famine during the time of Sayyiduna Yusuf (peace be upon him).”

Sayyiduna Ibn Abbas (may Allah be pleased with them both) narrates that the Prophet Muhammad (peace be upon him) for a whole month, after every prayer—Dhuhr, Asr, Maghrib, Isha, and Fajr—in the last rak'ah, when he would say «‏‏‏‏سَمِعَ اللهُ لِمَنْ حَمِدَهُ» ‏‏‏‏, he would make Qunoot. The Prophet (peace be upon him) would supplicate against the tribes of Banu Sulaym: Ri'l, Dhakwan, and 'Usayyah, and the companions praying behind him would say Ameen. He states that the Prophet (peace be upon him) had sent (some reciters of the Qur'an) to them to invite them to Islam, but they killed them. 'Ikrimah says that this hadith is the key to the (legitimacy of) the supplication of Qunoot.