[Machine] I prayed behind Ali ibn Abi Talib a prayer that reminded me of a prayer I prayed with the Messenger of Allah ﷺ and the two caliphs. Then I went and prayed with him, and he would say Allahu Akbar every time he prostrated and every time he raised his head from bowing. So I said, "O Abu Nujayd, who was the first to leave it?" He said, "Uthman ibn Affan left it when his voice became weak and feeble."  

صَلَّيْتُ خَلْفَ عَلِيِّ بْنِ أَبِي طَالِبٍ صَلَاةً ذَكَّرَنِي صَلَاةً صَلَّيْتُهَا مَعَ رَسُولِ اللهِ ﷺ وَالْخَلِيفَتَيْنِ قَالَ فَانْطَلَقْتُ فَصَلَّيْتُ مَعَهُ فَإِذَا هُوَ يُكَبِّرُ كُلَّمَا سَجَدَ وَكُلَّمَا رَفَعَ رَأْسَهُ مِنَ الرُّكُوعِ فَقُلْتُ يَا أَبَا نُجَيْدٍ مَنْ أَوَّلُ مَنْ تَرَكَهُ؟ قَالَ عُثْمَانُ بْنُ عَفَّانَ حِينَ كَبِرَ وَضَعُفَ صَوْتُهُ تَرَكَهُ