Jami` at-Tirmidhi 1238
جامع الترمذي#1238Sahihحَدَّثَنَا أَبُو عَمَّارٍ الْحُسَيْنُ بْنُ حُرَيْثٍ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ نُمَيْرٍ، عَنِ الْحَجَّاجِ، وَهُوَ ابْنُ أَرْطَاةَ عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " الْحَيَوَانُ اثْنَانِ بِوَاحِدٍ لاَ يَصْلُحُ نَسِيئًا وَلاَ بَأْسَ بِهِ يَدًا بِيَدٍ " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
Narrated Jabir: That the Messenger of Allah (ﷺ) said: "Animals [two for one] are not proper on credit, and there is no harm in a hand to hand (exchange)." The Hadith is Hasan Sahih
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: 14:38