Sayyiduna Nu’man bin Bashir (may Allah be pleased with both of them) narrates that I heard the Messenger of Allah (peace and blessings of Allah be upon him) say: (Sha’bi says: By Allah! After him, I did not hear anyone say that he heard it from the Messenger of Allah, peace be upon him)“The lawful is clear and the unlawful is clear, but between them are some doubtful matters. I present to you an example of this: Indeed, Allah Almighty has set a sanctuary, and the sanctuary of Allah is that which He has forbidden. Whoever (even an animal) grazes around the sanctuary, it is quite possible that it may enter the sanctuary. Whoever associates with doubtful matters, it is likely that he will become bold in (committing) them.”Ibn ‘Awn says: It is not known whether Imam Sha’bi (may Allah have mercy on him) heard this from Sayyiduna Nu’man (may Allah be pleased with both of them) or said it from his own opinion.

Sayyiduna Jabir (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "No one will die until he has received his full provision, so do not be lazy in seeking provision. O people! Fear Allah, seek (provision) in a good way, take what is lawful and leave what is unlawful."

Sayyiduna Qais bin Abi Garzah (may Allah be pleased with him) narrates that we used to sell (goods) near Baqi‘ and we were called Samasirah (brokers). The Messenger of Allah (peace and blessings be upon him) came to us and said:“O group of traders!”He addressed us with our best name, then said:“In this trade, oaths and lies become involved, so mix charity with it (i.e., make up for this shortcoming through charity).”

Abu Huraira (may Allah be pleased with him) narrates that the Prophet Muhammad (peace and blessings be upon him) owed a man a camel (on credit). The man came to demand it from him, so the Prophet (peace be upon him) said:“Give him his camel.”The companions could not find a camel of that age, but found a camel older than that. The Prophet (peace be upon him) said:“Give him that one.”The man said:“You have paid me in full, may Allah reward you in full.”The Messenger of Allah (peace be upon him) said:“The best among you is the one who pays back in the best manner.”

Sayyiduna Suwaid bin Qais (may Allah be pleased with him) narrates that I and Makhramah ‘Abdi brought cloth from Hajar. The Messenger of Allah (peace and blessings be upon him) came to us and bargained with us for (some cloth for trousers). We had a man with us who used to weigh (goods) for wages. The Prophet (peace and blessings be upon him) said to him:“Weigh a little more (i.e., give extra).”

Abu Huraira (may Allah be pleased with him) reports that the Prophet (peace and blessings of Allah be upon him) said: "If a debt is referred to a wealthy person, then he should accept it. Delaying repayment by a wealthy person is injustice."

Sayyiduna Abdullah bin Amr (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) forbade buying and selling in the mosque.

Sayyiduna Abu Huraira (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "When you see someone buying or selling in the mosque, say: May Allah not grant profit in your trade. When you see someone announcing a lost item in the mosque, say: May Allah not return it to you."

Abu Huraira (may Allah be pleased with him) narrates that the Prophet Muhammad (peace and blessings be upon him) said: "Do not practice najsh (deception by bidding to raise the price), no townsman should sell for a villager, no man should make a deal over his (Muslim) brother's deal, no one should propose over his (Muslim) brother's proposal, and no woman should demand the divorce of her (Muslim) sister."

Abu Huraira (may Allah be pleased with him) narrates that the Prophet Muhammad (peace be upon him) passed by a man who was selling grain. Revelation came to him to put his hand inside it. The Prophet (peace be upon him) put his hand inside and found it (different from the top). The Messenger of Allah (peace be upon him) said: "Whoever deceives us is not one of us."