It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that when Surah Nasr was revealed to the Prophet (peace and blessings be upon him), he began to say frequently: "«سُبْحَانَكَاللّٰهُمَّوَبِحَمْدِكَاللّٰهُمَّاغْفِرْلِيإِنَّكَأَنْتَالتَّوَّابُ»" "Glory is to You, O our Lord! And all praise is for You. O Allah! Forgive me, for surely You are the Acceptor of repentance, the Most Merciful."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 4352
Hadith Gradingحکم دارالسلام:حسن لغيره، وهذا إسناد ضعيف لانقطاعه، أبو عبيدة لم يسمع من ابن مسعود.