In one narration the words are: "three ahruf".
Ahmad, al-Bazzar and al-Tabarani in all three (of his Mu'jams) recorded it; the narrators of Ahmad, the narrators of one of al-Tabarani's two chains, and the narrators of al-Bazzar are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب التفسير / 11577
Hadith Gradingمحدثین:إسنادہ صحیح
Hadith Takhrij«اخرجه البزار فى المسند (2316 و 2314) اخرجه الطبراني فى المعجم الكبير (6853) اخرجه احمد فى المسند (22/5)»