The Prophet ﷺ said, "The buyer and the seller have the option of canceling or confirming the bargain unless they separate, and if they spoke the truth and made clear the defects of the goods, them they would be blessed in their bargain, and if they told lies and hid some facts, their bargain would be deprived of Allah's blessings." (Using translation from Bukhārī 2110)  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ «الْبَيِّعَانِ بِالْخِيَارِ مَا لَمْ يَتَفَرَّقَا فَإِنْ بَيَّنَا وَصَدَقَا بُورِكَ لَهُمَا فِي بَيْعِهِمَا وَإِنْ كَذَبَا وَكَتَمَا مُحِقَ بَرَكَةُ بَيْعِهِمَا»