The Book on Government
وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا ابْنُ عُيَيْنَةَ، ح وَحَدَّثَنَا ابْنُ نُمَيْرٍ، حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، قَالَ لَمْ نُبَايِعْ رَسُولَ اللَّهِ صلى الله عليه وسلم عَلَى الْمَوْتِ إِنَّمَا بَايَعْنَاهُ عَلَى أَنْ لاَ نَفِرَّ .It has been narrated (through a different chain of transmitters) on the authority of Jabir who said:While swearing fealty to the Prophet (ﷺ) we did not take the oath to death but that we would not run away (from the battlefield)
From Sahih Muslim, whose reports the scholars accept as authentic.