"O Allah, bless my nation in their early mornings.". It was narrated from Abu Hurairah that the Prophet ﷺ said: "Whoever buys a Musarrah, he has the choice (of annulling the deal) for three days. If he returns it, then he must also give a Sa' of dates, not Samra'." Meaning wheat.  

عَنِ النَّبِيِّ ﷺ قَالَ مَنِ ابْتَاعَ مُصَرَّاةً فَهُوَ بِالْخِيَارِ ثَلاَثَةَ أَيَّامٍ فَإِنْ رَدَّهَا رَدَّ مَعَهَا صَاعًا مِنْ تَمْرٍ لاَ سَمْرَاءَ يَعْنِي الْحِنْطَةَ  

"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  

"I bear witness that the true and truly inspired one Abul-Qasim ﷺ told us: 'Selling a Muhaffalah is Khilabah, and Khilabah is not lawful for the Muslim."' (Ibn Majah said: " Meaning: 'Deception.")  

أَنَّهُ قَالَ أَشْهَدُ عَلَى الصَّادِقِ الْمَصْدُوقِ أَبِي الْقَاسِمِ ﷺ أَنَّهُ حَدَّثَنَا قَالَ بَيْعُ الْمُحَفَّلاَتِ خِلاَبَةٌ وَلاَ تَحِلُّ الْخِلاَبَةُ لِمُسْلِمٍ