One day Allah's Messenger (ﷺ) narrated to us a long narration about Ad-Dajjal and among the things he
narrated to us, was: "Ad-Dajjal will come, and he will be forbidden to enter the mountain passes of
Medina. He will encamp in one of the salt areas neighboring Medina and there will appear to him a
man who will be the best or one of the best of the people. He will say 'I testify that you are Ad-Dajjal
whose story Allah's Messenger (ﷺ) has told us.' Ad-Dajjal will say (to his audience), 'Look, if I kill this man
and then give him life, will you have any doubt about my claim?' They will reply, 'No,' Then Ad-
Dajjal will kill that man and then will make him alive. The man will say, 'By Allah, now I recognize
you more than ever!' Ad-Dajjal will then try to kill him (again) but he will not be given the power to
do so."
Sahih al-Bukhari Book 92, Hadith 79
(The wife of the Prophet) Allah's Messenger (ﷺ) said, "Don't you see that when your people built the Ka`ba,
they did not build it on all Abraham's foundations?" I said, "O Allah's Messenger (ﷺ)! Why don't you rebuild
it on Abraham's foundations?" He said, "Were your people not so close to (the period of Heathenism,
i.e. the Period between their being Muslims and being infidels), I would do so." The sub-narrator,
`Abdullah bin `Umar said, "Aisha had surely heard Allah's Messenger (ﷺ) saying that, for I do not think that
Allah's Messenger (ﷺ) left touching the two corners of the Ka`ba facing Al-Hijr except because the Ka`ba
was not built on all Abraham's foundations."
Sahih al-Bukhari Book 65, Hadith 11
“I went out with Zaid bin Suhan and Salman bin Rabi'ah, and when we were at `Udhaib, I found a whip. They said to me: 'Throw it away,' but I refused. When we came to Al-Madinah I went to Ubayy bin Ka'b and told him about that. He said: 'You did the right thing. I found one hundred dinar that had been lost at the time of the Messenger of Allah (ﷺ), and I asked him about it. He said, “Announce it for a year.” So I Announced it, and I did not find anyone who recognized it. He said: “Remember the features of its bag and strap, and how many it contains, then announce it for a year. If someone comes who describes it with those features, (give it to him), otherwise it is like your own property.”
Sunan Ibn Majah Book 18, Hadith 5
Malik said, "Another example of that is that the Messenger of
Allah, may Allah bless him and grant him peace, forbade the sale
called muzabana and granted an indulgence in the ariya for computing
the equivalent in dates. It was distinguished between them that the
muzabana-sale was based on shrewdness and trade, and the ariya sale
was based on a favour rendered, and there was no shrewdness in it."
Malik said, "A man must not buy food for a fourth, a third,
or a fraction of a dirham on the basis that he be given that food on
credit. There is no harm in a man buying food for a fraction of a
dirham on credit and then he gives a dirham and takes goods with what
remains of his dirham because he gave the fraction he owed as silver,
and took goods to make up the rest of his dirham. There is no harm in
that transaction."
Malik said, "There is no harm in a man
placing a dirham with another man and then taking from him known goods
for a fourth, third, or a known fraction. If there was not a known
price on the goods and the man said, 'I will take them from you for
the price of each day,' this is not halal because there is
uncertainty. It might be less one time, and more another time, and
they would not part with a known sale."
Malik said, "If
someone sells some food without measuring precisely and does not
exclude any of it from the sale and then it occurs to him to buy some
of it, it is not good for him to buy any of it except what it would be
permitted for him to exclude from it. That is a third or less. If it
is more than a third, it becomes muzabana and is disapproved. He must
only purchase from what he would be permitted to exclude, and he is
only permitted to exclude a third or less than that. This is the way
of doing things in which there is no dispute with us."
Muwatta Malik Book 31, Hadith 55