I heard ʿ Ali ؓ say: We do not have any book that we read to you except what is in the Qurʿan and what is in this document - a document that was in the sheath of a sword that he was wearing, which had an adornment of iron. - I took it from the Messenger of Allah ﷺ and in it are the rates of zakah.
سَمِعْتُ عَلِيًّا يَقُولُ مَا عِنْدَنَا كِتَابٌ نَقْرَؤُهُ عَلَيْكُمْ إِلا مَا فِي الْقُرْآنِ وَمَا فِي هَذِهِ الصَّحِيفَةِ صَحِيفَةٌ كَانَتْ فِي قِرَابِ سَيْفٍ كَانَ عَلَيْهِ حِلْيَتُهُحَدِيدٌ أَخَذْتُهَا مِنْ رَسُولِ اللهِ ﷺ فِيهَا فَرَائِضُ الصَّدَقَةِ