The Book of the Merits of the Companions
حَدَّثَنَا عَبْدُ بْنُ حُمَيْدٍ، أَخْبَرَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا ابْنُ جُرَيْجٍ، أَخْبَرَنِي أَبُو الزُّبَيْرِ، أَنَّهُ سَمِعَ جَابِرَ بْنَ عَبْدِ اللَّهِ، يَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم وَجَنَازَةُ سَعْدِ بْنِ مُعَاذٍ بَيْنَ أَيْدِيهِمْ " اهْتَزَّ لَهَا عَرْشُ الرَّحْمَنِ " .Jabir b. 'Abdullah reported Allah's Messenger (ﷺ) as saying while the bier of Sa'd b. Mu'adh was placed before them:The Throne of the most Gracious shook at the death of Sa'd b. Mu'adh
From Sahih Muslim, whose reports the scholars accept as authentic.