"The Messenger of Allah ﷺ said: 'Whoever buys a Muhaffalah, (1) he has the choice (of annulling the deal) for three days. If he returns it, then he must also give wheat equal to twice, the amount of its milk, or equal to the amount of its milk."'
قَالَ رَسُولُ اللَّهِ ﷺ يَا أَيُّهَا النَّاسُ مَنْ بَاعَ مُحَفَّلَةً فَهُوَ بِالْخِيَارِ ثَلاَثَةَ أَيَّامٍ فَإِنْ رَدَّهَا رَدَّ مَعَهَا مِثْلَىْ لَبَنِهَا أَوْ قَالَ مِثْلَ لَبَنِهَا قَمْحًا