Awn bin Abdullah narrates: I met an elderly man in Syria, and I asked: Did you hear anything from the Prophet (peace and blessings be upon him)? He replied: Yes! I heard him say:
'Allahumma ighfir lana warhamna' (O Allah, forgive us and have mercy on us).
Ahmad recorded it; its chain contains a narrator, al-Mas'udi, who suffered from confusion (ikhtilat); the remaining narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدعية / 17358