Sunan Ibn Majah Book 0, Hadith 262

حَدَّثَنَا أَبُو مَرْوَانَ الْعُثْمَانِيُّ، مُحَمَّدُ بْنُ عُثْمَانَ حَدَّثَنَا إِبْرَاهِيمُ بْنُ سَعْدٍ، عَنِ الزُّهْرِيِّ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ هُرْمُزَ الأَعْرَجِ، أَنَّهُ سَمِعَ أَبَا هُرَيْرَةَ، يَقُولُ وَاللَّهِ لَوْلاَ آيَتَانِ فِي كِتَابِ اللَّهِ تَعَالَى مَا حَدَّثْتُ عَنْهُ - يَعْنِي عَنِ النَّبِيِّ ـ صلى الله عليه وسلم ـ - شَيْئًا أَبَدًا لَوْلاَ قَوْلُ اللَّهِ ‏{إِنَّ الَّذِينَ يَكْتُمُونَ مَا أَنْزَلَ اللَّهُ مِنَ الْكِتَابِ}‏ إِلَى آخِرِ الآيَتَيْنِ ‏.‏

It was narrated that 'Abdur-Rahman bin Hurmuz Al-A'raj heard Abu Hurairah say:"By Allah, were it not for two Verses in the Book of Allah, I would never have narrated anything from him, meaning from the Prophet, were it not for the Words of Allah: Verily, those who conceal what Allah has sent down of the Book, and purchase a small gain therewith (of worldly things), they eat into their bellies nothing but fire. Allah will not speak to them on the Day of Resurrection, nor purify them, and theirs will be a painful torment. Those are they who have purchased error at the price of guidance, and torment at the price of forgiveness. So how bold they are (for evil deeds which will push them) to the Fire