The Messenger of Allah ﷺ said, "There has not been a prophet whom Allah sent to a nation before me except that he had from among his nation devoted disciples and companions who followed his sunnah and obeyed his command. Then there came after them successors who said what they did not do and did what they were not commanded to do. Whoever struggles against them with his hand is a believer, whoever struggles against them with his tongue is a believer, and whoever struggles against them with his heart is a believer. Beyond that there is not so much as a mustard seed of faith."Abu Rafi said, I related this to Abdullah bin Umar, but he rejected it from me. Then Ibn Masud arrived and stayed at Qanat. Abdullah bin Umar asked me to accompany him to visit Ibn Masud, who was ill, so I went with him. When we sat down, I asked Ibn Masud about this hadith, and he related it to me just as I had related it to Ibn Umar.Salih said, A similar report has been transmitted from Abu Rafi.
حدثني عمرو الناقد وأبو بكر بن النضر وعبد بن حميد واللفظ لعبد قالوا حدثنا يعقوب بن إبراهيم بن سعد قال حدثني أبي عن صالح بن كيسان عن الحارث عن جعفر بن عبد الله بن الحكم عن عبد الرحمن بن المسور عن أبي رافع
أن رسول الله ﷺ قال ما من نبي بعثه الله في أمة قبلي إلا كان له من أمته حواريون وأصحاب يأخذون بسنته ويقتدون بأمره ثم إنها تخلف من بعدهم خلوف يقولون ما لا يفعلون ويفعلون ما لا يؤمرون فمن جاهدهم بيده فهو مؤمن ومن جاهدهم بلسانه فهو مؤمن ومن جاهدهم بقلبه فهو مؤمن وليس وراء ذلك من الإيمان حبة خردل قال أبو رافع فحدثت عبد الله بن عمر فأنكره علي فقدم ابن مسعود فنزل بقناة فاستتبعني إليه عبد الله بن عمر يعوده فانطلقت معه فلما جلسنا سألت ابن مسعود عن هذا الحديث فحدثنيه كما حدثته ابن عمر قال صالح وقد تحدث بنحو ذلك عن أبي رافع