A seller should
honestly reveal the defects of his commodities and is not permitted to conceal them, because this entails cheating. It was authentically reported from the Prophet (peace be upon him) that he said:
Both parties in a business transaction have the right to annul or conclude it so long as they have not separated. If they speak the truth and make everything clear, they will be blessed in their transaction; but if they tell a lie and conceal anything, the blessing of their transaction will be wiped out.
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.