I have Presented this post in Urdu, which can be read HERE

Nawasib sometimes try to argue with a Narration from Sermon 164 of Nahj-ul-Balagh, and they use some of its sentences to proof Praise of Uthman. Like they quote

 وَوَاللهِ مَا أَدْرِي مَا أَقُولُ لَكَ! مَا أَعْرِفُ شَيْئاً تَجْهَلُهُ، وَلاَ أَدُلُّكَ عَلَى أَمْر لاَ تَعْرِفُهُ، إِنَّكَ لَتَعْلَمُ مَا نَعْلَمُ، مَا سَبَقْنَاكَ إِلَى شَيْءٍ فَنُخْبِرَكَ عَنْهُ، وَلاَ خَلَوْنَا بِشَيْءٍ فَنُبَلِّغَكَهُ، وَقَدْ رَأَيْتَ كَمَا رَأَيْنَا، وَسَمِعْتَ كَمَا سَمِعْنَا، وَصَحِبْتَ رَسُولَ الله -صَلَّى اللهُ عَلَيْهِ وَآلِه- كَمَا صَحِبْنَا. وَمَا ابْنُ أَبِي قُحَافَةَ وَلاَ ابْنُ الْخَطَّابِ بِأَوْلَى بِعَمَلِ الْحَقِّ مِنْكَ، وَأَنْتَ أَقْرَبُ إِلَى رَسُولِ اللهِ -صَلَّى اللهُ عَلَيْهِ وَآلِه وَسَلَّمِ- وَشِيجَةَ  رَحِمٍ مِنْهُمَا، وَقَدْ نِلْتَ مَنْ صَهْرِهِ مَا لَمْ يَنَالاَ

 by Allah I do not know what to say to you. I know nothing (in this matter) which you do not know nor can I lead you to any matter of which you are not aware. You certainly know what we know we have not come to know anything before you which we could tell you; nor did we learn anything in secret which we should convey to you. You have seen as we have seen and you have heard as we have heard. You sat in the company of the Prophet of Allah as we did. (Abu Bakr) Ibn Abi Quhafah and (‘Umar) ibn al-Khattab were no more responsible for acting righteously than you since you are nearer than both of them to the Prophet of Allah through kinship and you also hold relationship to him by marriage which they do not hold.


As per Masadir Nahj-ul-Balagha wa Asaneedhu, 2/387; The Shia source for this Narration is Sheikh Mufid’s al-Jaml, p. 100. And the chain mentioned there is


وروى المدائني عن علي بن صالح قال ذكر ابن دأب قال لما عاب الناس على عثمان 


Grand Maraja, Sadiq Rohani was asked about This chain, and He replied that This Chain is Not Authentic. He termed Madaini as Majhool/Unknown; and Ali bin Salih as Weak/Daif


Here is the Reply of Agha Sadiq Rohani