Sahih Muslim
Sahih Muslim Introduction 13
وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا عُمَرُ بْنُ عَلِيِّ بْنِ مُقَدَّمٍ، عَنْ سُفْيَانَ بْنِ حُسَيْنٍ، قَالَ سَأَلَنِي إِيَاسُ بْنُ مُعَاوِيَةَ فَقَالَ إِنِّي أَرَاكَ قَدْ كَلِفْتَ بِعِلْمِ الْقُرْآنِ فَاقْرَأْ عَلَىَّ سُورَةً وَفَسِّرْ حَتَّى أَنْظُرَ فِيمَا عَلِمْتَ . قَالَ فَفَعَلْتُ . فَقَالَ لِيَ احْفَظْ عَلَىَّ مَا أَقُولُ لَكَ إِيَّاكَ وَالشَّنَاعَةَ فِي الْحَدِيثِ فَإِنَّهُ قَلَّمَا حَمَلَهَا أَحَدٌ إِلاَّ ذَلَّ فِي نَفْسِهِ وَكُذِّبَ فِي حَدِيثِهِ .
Sufyan ibn Husayn said: Iyas ibn Mu'awiyah asked me, “I see that you are devoted to Qur'anic knowledge. Recite a surah to me and explain it, so I can see what you know.” I did so, and he said, “Remember what I am about to tell you: beware of outrageous reports in hadith. Rarely does anyone transmit them without disgracing himself and being discredited in his narrations.”