Sunan an-Nasa'i 1923
سنن النسائي#1923Sahihأَخْبَرَنَا مُحَمَّدُ بْنُ مَنْصُورٍ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنِ ابْنِ أَبِي نَجِيحٍ، عَنْ مُجَاهِدٍ، عَنْ أَبِي مَعْمَرٍ، قَالَ كُنَّا عِنْدَ عَلِيٍّ فَمَرَّتْ جَنَازَةٌ فَقَامُوا لَهَا فَقَالَ عَلِيٌّ مَا هَذَا قَالُوا أَمْرُ أَبِي مُوسَى . فَقَالَ إِنَّمَا قَامَ رَسُولُ اللَّهِ صلى الله عليه وسلم لِجَنَازَةِ يَهُودِيَّةٍ وَلَمْ يَعُدْ بَعْدَ ذَلِكَ .
It was narrated that Abu Ma'mar said:"We were with 'Ali and a funeral passed by him, and they stood up for it. 'Ali said: "What is this?' They said: 'The command of Abu Musa.' He said: 'Rather the Messenger of Allah stood up for a Jewish funeral but he did not do it again
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 21:106