عَنْ عَلِيٍّ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ كَانَ إِذَا رَفَعَ رَأْسَهُ مِنَ الرَّكْعَةِ قَالَ ((سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ رَبَّنَا وَلَكَ الْحَمْدُ مِلْءَ السَّمَاوَاتِ وَالْأَرْضِ وَمَا بَيْنَهُمَا وَمِلْءَ مَا شِئْتَ مِنْ شَيْءٍ بَعْدُ))
It is narrated from Sayyiduna Ali (may Allah be pleased with him) that when the Messenger of Allah (peace and blessings be upon him) would raise his head from bowing (ruku‘), he would recite: "Sami‘a Allahu liman hamidah, Rabbana wa laka al-hamd mil’a as-samawati wal-ard wa ma baynahuma wa mil’a ma shi’ta min shay’in ba‘d." (Allah has heard the one who praised Him. Our Lord! And to You belongs all praise, as much as would fill the heavens, the earth, and what is between them, and as much as would fill whatever else You will after that.)