[Machine] About Ali, Thabit said that he was his scribe. It was narrated that Al-Hakam and Hammad said that Ali used to order the recitation behind the Imam, and he was a sent, witness for what had been previously transmitted. All of this indicates the weakness of what has been narrated from Ali, in contrast to others with chains of transmission that are not equal in strength. Among them is Ubada bin As-Samit.  

عَنْ عَلِيٍّ ؓ ثَابِتٌ وَكَانَ كَاتِبًا لَهُ وَرُوِّينَا عَنِ الْحَكَمِ وَحَمَّادٍ أَنَّ عَلِيًّا كَانَ يَأْمُرُ بِالْقِرَاءَةِ خَلْفَ الْإِمَامِ وَهُوَ مُرْسَلٌ شَاهِدٌ لِمَا تَقَدَّمَ مِنَ الْمَوْصُولِ وَفِي كُلِّ ذَلِكَ دَلَالَةٌ عَلَى ضَعْفِ مَا رُوِيَ عَنْ عَلِيٍّ ؓ بِخِلَافِهِ بِأَسَانِيدَ لَا يَسْوَى ذِكْرَهَا لِضَعْفِهَا وَمِنْهُمْ عُبَادَةُ بْنُ الصَّامِتِ ؓ