Sayyiduna Abu Hurayrah (may Allah be pleased with him) narrated something similar from the Prophet (peace and blessings be upon him). Ahmad recorded both these narrations; the narrators of the hadith reported by Sayyiduna Abu Hurayrah (may Allah be pleased with him) are the narrators of the Sahih, and the chain of the narration of Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) is hasan (good).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب التوبة / 17488
Hadith Gradingمحدثین:رواهما أحمد، ورجال حديث أبي هريرة رجال الصحيح، وإسناد ابن مسعود حسن.
Hadith Takhrij«اخرجه احمد فى المسند (8027 و 3786)»