Sahih Muslim 1850
صحيح مسلم#1850Sahihحَدَّثَنَا هُرَيْمُ بْنُ عَبْدِ الأَعْلَى، حَدَّثَنَا الْمُعْتَمِرُ، قَالَ سَمِعْتُ أَبِي يُحَدِّثُ، عَنْ أَبِي، مِجْلَزٍ عَنْ جُنْدَبِ بْنِ عَبْدِ اللَّهِ الْبَجَلِيِّ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ قُتِلَ تَحْتَ رَايَةٍ عُمِّيَّةٍ يَدْعُو عَصَبِيَّةً أَوْ يَنْصُرُ عَصَبِيَّةً فَقِتْلَةٌ جَاهِلِيَّةٌ " .
It has been narrated on the authority of Ibn 'Abdullah al-Bajali that the Messenger of Allah (ﷺ) said:One who is killed under the banner of a man who is blind (to his just cause), who raises the slogan of family or supports his own tribe, dies the death of one belonging to the days of Jahiliyya
Scholarly Authentication
The label above is the grade most of these scholars gave, each scholar counted once — 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. When they judged only its chain of narrators (“Isnaad”), the label says “Sound chain”. Each scholar's own wording:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
Sahih Muslim 1850 is the standard (Abd al-Baqi) number; this narration is #4792 in the MuslimGPT index.
In-book reference: 33:89