Sunan an-Nasa'i 3129
سنن النسائي#3129Sahihأَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ عَبْدِ الْحَكَمِ، عَنْ شُعَيْبٍ، عَنِ اللَّيْثِ، عَنْ عُبَيْدِ اللَّهِ بْنِ أَبِي جَعْفَرٍ، قَالَ أَخْبَرَنِي عُرْوَةُ، عَنْ أَبِي مُرَاوِحٍ، عَنْ أَبِي ذَرٍّ، أَنَّهُ سَأَلَ نَبِيَّ اللَّهِ صلى الله عليه وسلم أَىُّ الْعَمَلِ خَيْرٌ قَالَ " إِيمَانٌ بِاللَّهِ وَجِهَادٌ فِي سَبِيلِ اللَّهِ عَزَّ وَجَلَّ " .
It was narrated from Abu Dharr that he asked the prophet of Allah (ﷺ) which deed was best. He said:"Belief in Allah and Jihad in the cause of Allah, the Mighty and Sublime
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: 25:45