That the Prophet ﷺ said: "Whoever purchased an animal that has not been milked, then he the choice when he milks it, if he wishes he may return it, returning a Sa' of dried dates along with it."
قَالَ النَّبِيُّ ﷺ مَنِ اشْتَرَى مُصَرَّاةً فَهُوَ بِالْخِيَارِ إِذَا حَلَبَهَا إِنْ شَاءَ رَدَّهَا وَرَدَّ مَعَهَا صَاعًا مِنْ تَمْرٍ