Sahih Muslim
Sahih Muslim 155f
وَحَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنِي الْوَلِيدُ بْنُ مُسْلِمٍ، حَدَّثَنَا ابْنُ أَبِي ذِئْبٍ، عَنِ ابْنِ شِهَابٍ، عَنْ نَافِعٍ، مَوْلَى أَبِي قَتَادَةَ عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " كَيْفَ أَنْتُمْ إِذَا نَزَلَ فِيكُمُ ابْنُ مَرْيَمَ فَأَمَّكُمْ مِنْكُمْ " . فَقُلْتُ لاِبْنِ أَبِي ذِئْبٍ إِنَّ الأَوْزَاعِيَّ حَدَّثَنَا عَنِ الزُّهْرِيِّ عَنْ نَافِعٍ عَنْ أَبِي هُرَيْرَةَ " وَإِمَامُكُمْ مِنْكُمْ " . قَالَ ابْنُ أَبِي ذِئْبٍ تَدْرِي مَا أَمَّكُمْ مِنْكُمْ قُلْتُ تُخْبِرُنِي . قَالَ فَأَمَّكُمْ بِكِتَابِ رَبِّكُمْ تَبَارَكَ وَتَعَالَى وَسُنَّةِ نَبِيِّكُمْ صلى الله عليه وسلم .
Zuhayr ibn Harb narrated to us: al-Walid ibn Muslim narrated to me; Ibn Abi Dhi'b narrated to us, from Ibn Shihab, from Nafi', the client of Abu Qatada, from Abu Hurayra, that the Messenger of Allah (peace and blessings be upon him) said: What will your state be when the son of Mary descends among you and leads you as one of you? I said to Ibn Abi Dhi'b: al-Awza'i narrated to us from al-Zuhri, from Nafi', from Abu Hurayra, the wording, Your leader will be one of you. Ibn Abi Dhi'b said: Do you know what he leads you as one of you means? I said: Tell me. He said: He will lead you according to the Book of your Lord, Blessed and Exalted, and the Sunnah of your Prophet (peace and blessings be upon him).