The Prophet (ﷺ) said, "Avoid the seven great destructive sins." The people enquire, "O Allah's Messenger (ﷺ)!
What are they? "He said, "To join others in worship along with Allah, to practice sorcery, to kill the
life which Allah has forbidden except for a just cause, (according to Islamic law), to eat up Riba
(usury), to eat up an orphan's wealth, to give back to the enemy and fleeing from the battlefield at the
time of fighting, and to accuse, chaste women, who never even think of anything touching chastity
and are good believers.
Sahih al-Bukhari Book 55, Hadith 29
The Prophet (ﷺ) said, "An Israeli man asked another Israeli to lend him
one thousand Dinars. The second man required witnesses. The former
replied, 'Allah is sufficient as a witness.' The second said, 'I want
a surety.' The former replied, 'Allah is sufficient as a surety.' The
second said, 'You are right,' and lent him the money for a certain
period. The debtor went across the sea. When he finished his job, he
searched for a conveyance so that he might reach in time for the
repayment of the debt, but he could not find any. So, he took a piece
of wood and made a hole in it, inserted in it one thousand Dinars and
a letter to the lender and then closed (i.e. sealed) the hole tightly.
He took the piece of wood to the sea and said. 'O Allah! You know well
that I took a loan of one thousand Dinars from so-and-so. He demanded
a surety from me but I told him that Allah's Guarantee was sufficient
and he accepted Your guarantee. He then asked for a witness and I told
him that Allah was sufficient as a Witness, and he accepted You as a
Witness. No doubt, I tried hard to find a conveyance so that I could
pay his money but could not find, so I hand over this money to You.'
Saying that, he threw the piece of wood into the sea till it went out
far into it, and then he went away. Meanwhile he started searching for
a conveyance in order to reach the creditor's country.
One day the lender came out of his house to see whether a ship had
arrived bringing his money, and all of a sudden he saw the piece of
wood in which his money had been deposited. He took it home to use for
fire. When he sawed it, he found his money and the letter inside it.
Shortly after that, the debtor came bringing one thousand Dinars to
him and said, 'By Allah, I had been trying hard to get a boat so that
I could bring you your money, but failed to get one before the one I
have come by.' The lender asked, 'Have you sent something to me?' The
debtor replied, 'I have told you I could not get a boat other than the
one I have come by.' The lender said, 'Allah has delivered on your
behalf the money you sent in the piece of wood. So, you may keep your
one thousand Dinars and depart guided on the right path.' "
Sahih al-Bukhari Book 39, Hadith 2
Verily Allah sent Muhammad (ﷺ) with truth and He sent down the Book upon him, and the verse of stoning was included in what was sent down to him. We recited it, retained it in our memory and understood it. Allah's Messenger (ﷺ) awarded the punishment of stoning to death (to the married adulterer and adulteress) and, after him, we also awarded the punishment of stoning, I am afraid that with the lapse of time, the people (may forget it) and may say: We do not find the punishment of stoning in the Book of Allah, and thus go astray by abandoning this duty prescribed by Allah. Stoning is a duty laid down in Allah's Book for married men and women who commit adultery when proof is established, or it there is pregnancy, or a confession.
Sahih Muslim Book 29, Hadith 21