The Book of Sacrifices
وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ عَمْرٍو، عَنْ عَطَاءٍ، عَنْ جَابِرٍ، قَالَ كُنَّا نَتَزَوَّدُهَا إِلَى الْمَدِينَةِ عَلَى عَهْدِ رَسُولِ اللَّهِ صلى الله عليه وسلم .Jabir reported:We made provision (out of the flesh of sacrificed animals for our journey) to Medina during the lifetime of Allah's Messenger (ﷺ)
From Sahih Muslim, whose reports the scholars accept as authentic.