وَعَن أبي جُحيفةَ قَالَ: سَأَلْتُ عَلِيًّا رَضِيَ اللَّهُ عَنْهُ هَلْ عِنْدَكُمْ شَيْءٌ لَيْسَ فِي الْقُرْآنِ؟ فَقَالَ: وَالَّذِي فَلَقَ الْحَبَّةَ وَبَرَأَ النَّسَمَةَ مَا عِنْدَنَا إِلَّا مَا فِي الْقُرْآنِ إِلَّا فَهْمًا يُعْطَى رَجُلٌ فِي كِتَابِهِ وَمَا فِي الصَّحِيفَةِ قُلْتُ: وَمَا فِي الصَّحِيفَةِ؟ قَالَ: الْعَقْلُ وَفِكَاكُ الْأَسِيرِ وَأَنْ لَا يُقْتَلَ مُسْلِمٌ بِكَافِرٍ. رَوَاهُ الْبُخَارِيُّ

Abu Juhaifa said he asked ‘Ali whether he had any instruction not contained in the Qur’an and he replied, “By Him who split the seed and created the soul, I have nothing but what is in the Qur’an, except understanding which a man is given regarding His Book and what is in the document.” He asked him what the document contained, and he replied, “Blood wit, the setting free of a prisoner, and that a Muslim should not be killed for an infidel.” Bukhari transmitted it.