`Umar bin Al-Khattab left for Sham, and when he reached a placed called Sargh, he came to know that there was an outbreak of an epidemic (of plague) in Sham. Then `AbdurRahman bin `Auf told him that Allah's Messenger (ﷺ) said, "If you hear the news of an outbreak of an epidemic (plague) in a certain place, do not enter that place: and if the epidemic falls in a place while you are present in it, do not leave that place to escape from the epidemic." So `Umar returned from Sargh.

That he heard Usama bin Zaid speaking to Sa`d, saying, "Allah's Messenger (ﷺ) mentioned the plague and said, 'It is a means of punishment with which some nations were punished and some of it has remained, and it appears now and then. So whoever hears that there is an outbreak of plague in some land, he should not go to that land, and if the plague breaks out in the land where one is already present, one should not run away from that land, escaping from the plague."

The Prophet (ﷺ) said, "The one who takes back his gift is like a dog swallowing its own vomit, and we (believers) should not act according to this bad example."

The Prophet (ﷺ) has decreed that preemption is valid in all cases where the real estate concerned has not been divided, but if the boundaries are established and the ways are made, then there is no preemption. A man said, "Preemption is only for the neighbor," and then he makes invalid what he has confirmed. He said, "If someone wants to buy a house and being afraid that the neighbor (of the house) may buy it through preemption, he buys one share out of one hundred shares of the house and then buys the rest of the house, then the neighbor can only have the right of preemption for the first share but not for the rest of the house; and the buyer may play such a trick in this case."

Al-Miswar bin Makhrama came and put his hand on my shoulder and I accompanied him to Sa'd. Abu Rafi' said to Al-Miswar, "Won't you order this (i.e. Sa'd) to buy my house which is in my yard?" Sa'd said, "I will not offer more than four hundred in installments over a fixed period." Abu Rafi said, "I was offered five hundred cash but I refused. Had I not heard the Prophet (ﷺ) saying, 'A neighbor is more entitled to receive the care of his neighbor,' I would not have sold it to you." The narrator said, to Sufyan: Ma'mar did not say so. Sufyan said, "But he did say so to me." Some people said, "If someone wants to sell a house and deprived somebody of the right of preemption, he has the right to play a trick to render the preemption invalid. And that is by giving the house to the buyer as a present and marking its boundaries and giving it to him. The buyer then gives the seller one-thousand Dirham as compensation in which case the preemptor loses his right of preemption."

Abu Rafi' said that Sa'd offered him four hundred Mithqal of gold for a house. Abu Rafi ' said, "If I had not heard Allah's Messenger (ﷺ) saying, 'A neighbor has more right to be taken care of by his neighbor,' then I would not have given it to you." Some people said, "If one has bought a portion of a house and wants to cancel the right of preemption, he may give it as a present to his little son and he will not be obliged to take an oath."

Allah's Messenger (ﷺ) appointed a man called Ibn Al-Lutabiyya to collect the Zakat from Bani Sulaim's tribe. When he returned, the Prophet (ﷺ) called him to account. He said (to the Prophet, 'This is your money, and this has been given to me as a gift." On that, Allah's Messenger (ﷺ) said, "Why didn't you stay in your father's and mother's house to see whether you will be given gifts or not if you are telling the truth?" Then the Prophet (ﷺ) addressed us, and after praising and glorifying Allah, he said: "Amma Ba'du", I employ a man from among you to manage some affair of what Allah has put under my custody, and then he comes to me and says, 'This is your money and this has been given to me as a gift. Why didn't he stay in his father's and mother's home to see whether he will be given gifts or not? By Allah, not anyone of you takes a thing unlawfully but he will meet Allah on the Day of Resurrection, carrying that thing. I do not want to see any of you carrying a grunting camel or a mooing cow or a bleating sheep on meeting Allah." Then the Prophet (ﷺ) raised both his hands till the whiteness of his armpits became visible, and he said, "O Allah! Haven't I have conveyed (Your Message)?" The narrator added: My eyes witnessed and my ears heard (that Hadith).

The Prophet (ﷺ) said, "The neighbor has more right to be taken care of by his neighbor (than anyone else)." Some men said, "If one wants to buy a house for 20,000 Dirhams then there is no harm to play a trick to deprive somebody of preemption by buying it (just on paper) with 20,000 Dirhams but paying to the seller only 9,999 Dirhams in cash and then agree with the seller to pay only one Dinar in cash for the rest of the price (i.e. 10,001 Dirhams). If the preemptor offers 20,000 Dirhams for the house, he can buy it otherwise he has no right to buy it (by this trick he got out of preemption). If the house proves to belong to somebody else other than the seller, the buyer should take back from the seller what he has paid, i.e., 9,999 Dirhams and one Dinar, because if the house proves to belong to somebody else, so the whole bargain (deal) is unlawful. If the buyer finds a defect in the house and it does not belong to somebody other than the seller, the buyer may return it and receive 20,000 Dirhams (instead of 9999 Dirham plus one Dinar) which he actually paid.' Abu `Abdullah said, "So that man allows (some people) the playing of tricks amongst the Muslims (although) the Prophet (ﷺ) said, 'In dealing with Muslims one should not sell them sick (animals) or bad things or stolen things."

Abu Rafi` sold a house to Sa`d bin Malik for four-hundred Mithqal of gold, and said, "If I had not heard the Prophet (ﷺ) saying, 'The neighbor has more right to be taken care of by his neighbor (than anyone else),' then I would not have sold it to you."