'O owner of this food, what is this?' The owner said: 'O Messenger of Allah () the fruit was dampened by rain.' He said: 'You should have placed the dampened food on top so that people can see it. Whoever cheats is not from us!' (Tirmidthi) *It is unlawful for one to meet merchants before they enter the market area. The Prophet () said:
'Do not buy products till they reach the marketplace.'
*One should be kind and forbearing when selling and buying. The Prophet () said:
'May Allah have mercy on one who is kind and forbearing when buying, selling and when asking for the repayment of his loan.'(Ibn Majah) *One should not raise his voice when arguing. The Prophet () was neither ill-mannered nor rude, nor did he raise his voice. He did not pay evil with evil; rather, he forgave and pardoned. (Shama’il Muhamadiyyah)
*One should abide by his promises and duties. Allah, the Exalted, says:
*One should verify sales by noting them down or having them attested. Allah, the Exalted, says:
But take witnesses whenever you make a commercial contract. (2:282)
*One should not excessively swear by Allah when buying or selling. The Prophet () said:
'Beware, do not excessively swear by Allah when buying or selling, for it will lead one to hypocrisy and remove the blessings of one's product.'(Saheeh at-Targheeb)