"Before the tashahhud was enjoined, when we prayed we used to say: 'Peace (As-Salam) be upon Allah (SWT), pace be upon Jibril, peace be upon Mika'il.' The Messenger of Allah (ﷺ) said: 'Do not say this, for indeed Allah (SWT), the Mighty and Sublime, is As-Salam. Rather say: "At-tahiyyatu lillahi wasalawatu wat-tayibaat, as-salamu 'alaika ayah-Nabiyyu wa rahmatAllahi wa baraktuhu. As-salamu 'alaina a 'ala ibad illahis-salihin, ashadu an la ilaha ill Allah, wa ashhadu anna Muhammadan 'abduhu wa rasuluhu. (All compliments, prayers and pure words are due to Allah. Peace be upon you O Prophet, and the mercy of Allah and His blessings. Peace be upon us and upon the righteous slaves of Allah. I bear witness that that none has the right to be worshipped except Allah, and I bear witness that Muhammad is His slave and messenger.)"
Sunan an-Nasa'i Book 13, Hadith 99
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 Messenger of Allah (ﷺ) said: ‘Whoever wakes up in the morning and says upon waking: La ilaha illallah wahdahu la sharika lahu, lahul-mulku wa lahul-hamdu, wa Huwa ‘ala kulli shay’in Qadir; Subhan-Allah walhamdu lillahi, wa la ilaha illallahu, wa Allahu Akbar, wa la hawla wa la quwwata illa billahil-‘Aliyil-‘Azim (None has the right to be worshipped but Allah alone, with no partner or associate. His is the dominion and all praise is to Him, and He is Able to do all things. Glory is to Allah, praise is to Allah, none has the right to be worshiped but Allah, Allah is the Most Great, and there is no power and no strength except with Allah, the Most High, the Most Supreme), then he supplicates Rabbighfirli (O Lord, forgive me), he will be forgiven.’”
Walid said: “Or he said: then if he supplicated, it will be answered for him then if he stood up and performed ablution and then performed prayer, his prayer would be accepted.”
Sunan Ibn Majah Book 34, Hadith 52
The first to speak on Divine decree in al-Basrah was Ma`bad al Juhani. I and Humaid b. `Abd al-Rahman al-Himyari proceeded to perform Hajj or `Umrah. We said : would that we meet any of the Companions of the Messenger of Allah (ﷺ) so that we could ask him about what they say with regard to divine decree. So Allah helped us to meet `Abd Allah b. `Umar who was entering the mosque. So I and my companion surrounded him, and I thought that my companion would entrust me the task of speaking to him. Then I said : Abu ‘Abd al-Rahman, there appeared on our side some people who recite the Quran and are engaged in the hair-splitting of knowledge. They conceive that there is no Divine decree and everything happens freely without predestination. He said : When you meet those people, tell them that I am free from them, and they are free from me. By Him by Whom swears ‘Abd Allah b. ‘Umar, if one of them has gold equivalent to Uhud and he spends it, Allah will not accept it from him until he believes in Divine decree. He then said : ‘Umar b. Khattab transmitted to me a tradition, saying : One day when we were with the Messenger of Allah (ﷺ) a man with very white clothing and very black hair came up to us. No mark of travel was visible on him, and we did not recognize him. Sitting down beside the Messenger of Allah (ﷺ), leaning his knees against his and placing his hands on his thighs, he said : tell me, Muhammad, about Islam. The Messenger of Allah (ﷺ) said : Islam means that you should testify that there is no god but Allah, and Muhammad is Allah’s Apostle, that you should observe prayer, pay Zakat, fast during Ramadan, and perform Hajj to the house (i.e., Ka`bah), If you have the means to go. He said : You have spoken the truth. We were surprised at his questioning him and then declaring that he spoke the truth. He said : Now tell me about faith. He replied : It means that you should believe in Allah, his angels, his Books, his Apostles and the last day, and that you should believe in the decreeing both of good and evil. He said : You have spoken the truth. He said : now tell me about doing good (ihsan). He replied: It means that you should worship Allah as though you are seeing him; if you are not seeing him, he is seeing you. He said: Now tell me about the hour. He replied : The one who is asked about it is no better informed than the one who is asking. He said : Then tell me about its signs. He replied : That a maidservant should beget her mistress, and that you should see barefooted, naked, poor men and shepherds exalting themselves in buildings. ‘Umar said : He then went away, and I waited for three days, then he said : Do you know who the questioner was, `Umar? I replied : Allah and his Apostle know best. He said : He was Gabriel who came to you to teach you your religion.
Sunan Abi Dawud Book 42, Hadith 100
“Whoever drinks wine and gets drunk, his prayer will
not
be accepted for forty days, and if he dies he will enter Hell,
but if
he repents, Allah will accept his repentance. If he drinks
wine again
and gets drunk, his prayer will not be accepted for forty
days, and if
he dies he will enter Hell, but if he repents, Allah
will accept his
repentance. If he drinks wine again and gets drunk,
his prayer will
not be accepted for forty days, and if he dies he
will enter Hell, but
if he repents Allah will accept his repentance.
But if he does it
again, then Allah will most certainly make him
drink of the mire of
the puss or sweat on the Day of Resurrection.”
They said: “O Messenger
of Allah, what is the mire of the pus or
sweat? He said: “The
drippings of the people of Hell.”
Sunan Ibn Majah Book 30, Hadith 7