Sayyiduna Abu Umamah (may Allah be pleased with him) reports from the Prophet (peace and blessings be upon him) concerning this saying of Allah Almighty: "O you who believe, do not take as intimates anyone other than yourselves (followers of another religion). They will spare no effort (in trying to stir up) mischief for you; they wish (to see) you in hardship. Hatred (or enmity) has already appeared from their mouths, and what their breasts conceal (that hatred) is greater. We have made the signs clear to you, if you understand." He said: "These are the Khawarij."
Al-Tabarani recorded it, and its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب قتال أهل البغي / 10432
Hadith Gradingمحدثین:إسنادہ صحیح
Hadith Takhrij«اخرجه الطبراني فى المعجم الكبير (8047) ، أخرجه المعجم الكبير للطبراني برقم: 8047»