Musnad Ahmad 962
It was narrated that Tariq bin Shihab said:
I saw ‘Ali (رضي الله عنه) on the minbar, delivering a speech, wearing a sword that had an adornment of iron, and l heard him say: By Allah, we do not have any book that we recite to you except the Book of Allah, may He be exalted, and this document that the Messenger of Allah (ﷺ) gave to me. In it are the rates of zakah. He said: [This was] a document that was attached to his sword.
حَدَّثَنَا يَحْيَى بْنُ آدَمَ، حَدَّثَنَا شَرِيكٌ، عَنْ مُخَارِقٍ، عَنْ طَارِقِ بْنِ شِهَابٍ، قَالَ رَأَيْتُ عَلِيًّا رَضِيَ اللَّهُ عَنْهُ عَلَى الْمِنْبَرِ يَخْطُبُ وَعَلَيْهِ سَيْفٌ حِلْيَتُهُ حَدِيدٌ فَسَمِعْتُهُ يَقُولُ وَاللَّهِ مَا عِنْدَنَا كِتَابٌ نَقْرَؤُهُ عَلَيْكُمْ إِلَّا كِتَابَ اللَّهِ تَعَالَى وَهَذِهِ الصَّحِيفَةَ أَعْطَانِيهَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِيهَا فَرَائِضُ الصَّدَقَةِ قَالَ لِصَحِيفَةٍ مُعَلَّقَةٍ فِي سَيْفِهِ‏.‏