Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
abudawud:908ʿAbd al-Wahhāb b. Najdah > Muḥammad b. Yūsuf al-Firyābī > Yūnus b. Abū Isḥāq > Abū Isḥāq > al-Ḥārith > ʿAlī

The Messenger of Allah ﷺ said: Ali, do not instruct the imam during the prayer. Abu Dawud said: The narrator Abu Ishaq heard only for traditions from al-Harith, this tradition is not one of them.  

أبو داود:٩٠٨حَدَّثَنَا عَبْدُ الْوَهَّابِ بْنُ نَجْدَةَ حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ الْفِرْيَابِيُّ عَنْ يُونُسَ بْنِ أَبِي إِسْحَاقَ عَنْ أَبِي إِسْحَاقَ عَنِ الْحَارِثِ عَنْ عَلِيٍّ ؓ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ يَا عَلِيُّ لاَ تَفْتَحْ عَلَى الإِمَامِ فِي الصَّلاَةِ  

قَالَ أَبُو دَاوُدَ أَبُو إِسْحَاقَ لَمْ يَسْمَعْ مِنَ الْحَارِثِ إِلاَّ أَرْبَعَةَ أَحَادِيثَ لَيْسَ هَذَا مِنْهَا

See similar narrations below:

Collected by Suyūṭī