the Messenger of Allah ﷺ forbade selling animals for animals on credit.  

أَنَّ رَسُولَ اللَّهِ ﷺ نَهَى عَنْ بَيْعِ الْحَيَوَانِ بِالْحَيَوَانِ نَسِيئَةً  

"There is nothing wrong with selling animals, one for two, hand to hand," but he disliked selling them on credit.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ بَأْسَ الْحَيَوَانُ بِالْحَيَوَانِ وَاحِدًا بِاثْنَيْنِ يَدًا بِيَدٍ وَكَرِهَهُ نَسِيئَةً