[Machine] It was narrated from the Prophet ﷺ that he prohibited the selling of animals for animals labeld as "Nasī'ah" (which means deficient or unhealthy). Yahya said, then Al-Hasan forgot (the term) and said, "If the two kinds differ, then there is no harm."
عَنِ النَّبِيِّ ﷺ أَنَّهُ نَهَى عَنْ بَيْعِ الْحَيَوَانِ بِالْحَيَوَانِ نَسِيئَةً قَالَ يَحْيَى ثُمَّ نَسِيَ الْحَسَنُ فَقَالَ إِذَا اخْتَلَفَ الصِّنْفَانِ فَلَا بَأْسَ