Sayyiduna al-Miswar bin Makhramah (may Allah be pleased with him) narrates from Sayyiduna Abd al-Rahman bin Awf (may Allah be pleased with him) that he said: "I went in to Sayyiduna Umar (may Allah be pleased with him), and he said: 'O Abd al-Rahman bin Awf! Do you fear that the people will abandon Islam and leave it?' I said: 'No, in sha' Allah (if Allah wills). And how could they abandon it when the Book of Allah and the Sunnahs of the Messenger of Allah (peace and blessings be upon him) are among them?' He said: 'If anything of that (comes to pass), it will surely be because of Banu so-and-so.'"
Hadith Referenceالمعجم الأوسط / باب الألف / 2048
Hadith Gradingمحدثین:رجاله رجال الصحيح
Hadith Takhrij«قال الهيثمي: رجاله رجال الصحيح «مجمع الزوائد ومنبع الفوائد، ج 1، ص 113»» «أخرجه الطحاوي فى «شرح مشكل الآثار» (5/273)، (12/10)، (12/9) [دون رقم في الترقيم المختار]»