"I was present at the house when 'Uthman looked out over them and said: 'I adjure you by Allah and by Islam, are you aware that when the Messenger of Allah came to Al-Madinah, and it had no water that was considered sweet (suitable for drinking) except the well of Rumah, he said: "Who will buy the well of Rumah and dip his bucket in it alongside the buckets of the Muslims, in return for a better one in Paradise?" and I bought it with my capital and dipped my bucket into it alongside the buckets of the Muslims? Yet today you are preventing me from drinking from it, so that I have to drink salty water.' They said: 'By Allah, yes.' He said: 'I adjure you by Allah and by Islam, are you aware that I equipped the army of Al-'Usrah (Tabuk) from my own wealth?' They said: 'By Allah, yes.' He said: 'I adjure you by Allah and by Islam, are you aware that when the Masjid became too small for the people and the Messenger of Allah said: Who will buy the plot of the family of so and so and add it to the Masjid, in return for a better plot in Paradise? I bought it with my capital and added it to the Masjid? Yet now you are preventing me from praying two Rak'ahs therein.' They said: 'By Allah, yes.' He said: 'I adjure you by Allah and by Islam, are you aware that when the Messenger of Allah was atop Thabir -the Thabir in Makkah- and with him were Abu Bakr, 'Umar and myself, the mountain shook, and the Messenger of Allah kicked it with his foot and said: Be still, Thabir, for upon you are a Prophet, a Siddiq and two martyrs?' They said: 'By Allah, yes.' He said: 'Allahu Akbar! They have testified for me, by the Lord of the Ka'bah' -i.e., that I am a martyr."
Sunan an-Nasa'i Book 29, Hadith 15
“Allah is most great, Allah is most great”, and one of you says in response: “Allah is most great”, Allah is most great; then says: “ I testify tht there is no god but Allah”, and he says in response: “I testify that there is no god but Allah”, then say:” I testify that Muhammad is the Messenger of Allah”, and he makes the response: “ I testify that Muhammad is the Messenger of Allah”, then says: “Come to prayer”, and he makes the response: “There is no might and no power except in Allah”: then says: “ Allah is most great, Allah is most great”, and he makes the response: “Allah is most great”, then says: “There is no god but Allah”, if he says this from his heart, he enter Paradise.
Sunan Abi Dawud Book 2, Hadith 137
“The Messenger of Allah (ﷺ) stood up
and
addressed the people saying: ‘No, by Allah, I do not fear for
you, O
people, but I fear the attractions of this world that Allah
brings
forth for you.’ A man said to him: ‘O Messenger of
Allah(ﷺ), does
good bring forth evil?’ The Messenger of Allah
(ﷺ) remained silent
for a while, then he said: ‘What did you
say?’ He said: ‘I said, does
good bring forth evil?’ The
Messenger of Allah (ﷺ) said: ‘Good does
not bring forth anything
but good, but is it really good? Everything
that grows on the banks
of a stream may either kill if overeaten or
(at least) make the
animals sick, except if an animal eats its fill of
Khadir* and then
faces the sun, and then defecates and urinates,
chews the cud and
then returns to graze again. Whoever takes wealth in
a lawful manner,
it will be blessed for him, but whoever takes it in
an unlawful
manner, his likeness is that of one who eats and it never
satisfied.’”
Sunan Ibn Majah Book 36, Hadith 70