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.)