The People of Kufa complained against Sa`d to `Umar and the latter dismissed him and appointed `Ammar as their chief . They lodged many complaints against Sa`d and even they alleged that he did not pray properly. `Umar sent for him and said, "O Aba 'Is-haq! These people claim that you do not pray properly." Abu 'Is-haq said, "By Allah, I used to pray with them a prayer similar to that of Allah's Apostle and I never reduced anything of it. I used to prolong the first two rak`at of `Isha prayer and shorten the last two rak`at." `Umar said, "O Aba 'Is-haq, this was what I thought about you." And then he sent one or more persons with him to Kufa so as to ask the people about him. So they went there and did not leave any mosque without asking about him. All the people praised him till they came to the mosque of the tribe of Bani `Abs; one of the men called Usama bin Qatada with a surname of Aba Sa`da stood up and said, "As you have put us under an oath; I am bound to tell you that Sa`d never went himself with the army and never distributed (the war booty) equally and never did justice in legal verdicts." (On hearing it) Sa`d said, "I pray to Allah for three things: O Allah! If this slave of yours is a liar and got up for showing off, give him a long life, increase his poverty and put him to trials." (And so it happened). Later on when that person was asked how he was, he used to reply that he was an old man in trial as the result of Sa`d's curse. `Abdul Malik, the sub narrator, said that he had seen him afterwards and his eyebrows were overhanging his eyes owing to old age and he used to tease and assault the small girls in the way.

"Abayah bin Rifa'ah bin Rafi' met me while I was walking to the Friday prayer. He said: 'Have glad tidings, for indeed these footsteps of yours are in the cause of Allah. I heard Abu 'Abs say: "The Messenger of Allah (saws) said, 'Whoever get his two feet dusty in the path of Allah, then they are prohibited for the Fire.'"

[Abu 'Eisa said:] This Hadith is Hasan Sahih Gharib. Abu 'Abs's name is 'Abdur-Rahman bin Jabr. There are narrations on this topic from Abu Bkar and a man from the Companions of the Prophet (saws).

He said: Yazid bin Abi Maryam is a man from Ash-Sham. Al-Walid bin Muslim, Yahya bin Hamzah, and some others among the people of Ash-Sham report from him.

Buraid bin Abi Maryam is form Al-Kufah. His father is one of the Companions of the Prophet (saws) whose name was Malik bin Rabi'ah. [Buraid bin Abi Maryam heard from Anas bin Malik. Abu Ishaq Al-Hamdani, 'Ata bin As-Sa'ib, Yunus bin Abi Ishaq, and Shu'bah reported Ahadith from Buraid bin Abi Maryam].

86 Malik related to me from Musa ibn Maysara that he heard a man ask Said ibn al-Musayyab, "I am a man who sells for a debt." Said said, "Do not sell except for what you take to your camel."

Malik spoke about a person who bought goods from a man provided that he provide him with those goods by a specific date, either in time for a market in which he hoped for their saleability, or to fulfil a need at the time he stipulated. Then the seller failed him about the date, and the buyer wanted to return those goods to the seller. Malik said, "The buyer cannot do that, and the sale is binding on him. If the seller does bring the goods before the completion of the term, the buyer cannot be forced to take them."

Malik spoke about a person who bought food and measured it. Then some one came to him to buy it and he told him that he had measured it for himself and taken it in full. The new buyer wanted to trust him and accept his measure. Malik said, "Whatever is sold in this way for cash has no harm in it but whatever is sold in this way on delayed terms is disapproved of until the new buyer measures it out for himself. The sale with delayed terms is disapproved of because it leads to usury and it is feared that it will be circulated in this way without weight or measure. If the terms are delayed it is disapproved of and there is no disagreement about that with us."

Malik said, "One should not buy a debt owed by a man whether present or absent, without the confirmation of the one who owes the debt, nor should one buy a debt owed to a man by a dead person even if one knows what the deceased man has left. That is because to buy that is an uncertain transaction and one does not know whether the transaction will be completed or not completed."

He said, "The explanation of what is disapproved of in buying a debt owed by someone absent or dead, is that it is not known what unknown debtor may be connected to the dead person. If the dead person is liable for another debt, the price which the buyer gave on strength of the debt may become worthless."

Malik said, "There is another fault in that as well. He is buying something which is not guaranteed for him, and so if the deal is not completed, what he paid becomes worthless. This is an uncertain transaction and it is not good."

Malik said, "One distinguishes between a man who is only selling what he actually has and a man who is being paid in advance for something which is not yet in his possession. The man advancing the money brings his gold which he intends to buy with. The seller says, 'This is 10 dinars. What do you want me to buy for you with it?' It is as if he sold 10 dinars cash for 15 dinars to be paid later. Because of this, it is disapproved of. It is something leading to usury and fraud."