عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ رَضِيَ اللَّهُ عَنْهُ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ كَانَ مِمَّا يُكْثِرُ أَنْ يَقُولُ: ((سُبْحَانَكَ رَبَّنَا وَبِحَمْدِكَ اللَّهُمَّ اغْفِرْ لِي)) قَالَ: فَلَمَّا نَزَلَتْ {إِذَا جَاءَ نَصْرُ اللَّهِ وَالْفَتْحُ} قَالَ: ((سُبْحَانَكَ رَبَّنَا وَبِحَمْدِكَ، اللَّهُمَّ اغْفِرْ لِي، إِنَّكَ أَنْتَ التَّوَّابُ الرَّحِيمُ))
It is narrated from Sayyiduna Abdullah bin Mas’ud (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) used to frequently make this supplication: “Subhanaka Rabbana wa bihamdika Allahumma ighfir li.” (O our Lord! You are pure and with Your praise, O Allah! Forgive me.) Then when this Surah {إِذَاجَاءَ نَصْرُ اللّٰہِ وَالْفَتْحُ} was revealed, he would supplicate: “Subhanaka Rabbana wa bihamdika, Allahumma ighfir li, innaka anta al-tawwab al-raheem.” (O our Lord! You are pure and with Your praise, O Allah! Forgive me, surely You are the Most Accepting of repentance, the Most Merciful.)