Imaan :
1. Hudhaifah Radiyallahu 'anhu narrates that Rasulullah Sallallahu 'alaihi wasallam said: Islam will gradually fade as the design on cloth fades, until neither Siyam (fasting), nor Zakat (chanty) nor Nusuk (religious devotion and sacrifice) will be known In a certain night the Qur'an will be lifted from the hearts of men leaving not a single verse on the earth, and only a few groups of people wil remain, of old men and old women, saying: We found our forefathers reciting the Kalimah La ilaha illallah, so we are reciting it, silah ibne-Zufr said to Hudhaifah Radiyallahu 'anhu: How will their saying of La ilaha illallah benefit them when they neither know Siyam, nor Zakat, nor Nusuk? Hudhaifah Radiyallahu 'anhu evaded him So he repeated his question thrice, each time Hudhaifah evaded him Then, after the third time, he turned and faced him saying: U Silah! It will indeed save them from the Fire. (Mustadrak Hakim)
Namaz
2.'Ali Radiyallahu 'anhu narrates that the last words of Rasulullah Sallallahu 'alaihi wasallam were: As-Salat, as-Salat; fear Allah about those whom your right hand possesses (your slaves and subordinates). (AbuDawud)
Note: ' Vigilantly observe, guard and establish Salat.
3. Mu'awiyah Radiyallahu 'anhu narrates: I heard Nabi Sallallahu 'alaihi wasallam saying: The one for whom Allah intends good, He guides him towards the understanding of Deen. Indeed I am only a distributor and Allah is the One Who grants. (Bukhari)
Note: The second sentence of the hadith means that Rasulullah Sallallahu 'alaihi wasallam came as a distributor of knowledge and Allah is the Bestower of understanding of this knowledge and helps in acting upon it. (Mirqat)
5. 'Abdullah ibne-'Umar Radiyallahu 'anhuma narrates: I heard Rasulullah Sallallahu 'alaihi wasallam saying: Three people (of an Ummah) before you, set out on a journey and they took refuge in a cave to spend the night. A rock slid from the mountain and blocked the cave. They said: Indeed you cannot be relieved from this rock, except that you invoke Allah on the basis of your good deeds. So one of them said: O Allah! I had very aged parents and I would not give milk to my children and other members of my family and slaves before my parents. One day I went far away in quest of something and I could not return to my parents before they had slept. I milked the evening milk for them and found that they were asleep. I disliked to give milk to my children and other members of my family and slaves to drink before them. So I stood by them, with the bowl of milk in my hand, waiting for them to wake up till it dawned. Then they woke up and they drank their evening's share of the milk. O Allah! If I had done so to please You, relieve us from the distress imposed upon us by this rock. So the rock moved a little resulting in a small opening; but not enough for them to get out. Nabi Sallallahu 'alaihi wasallam then said that the second man said: O Allah! I had a cousin, whom I loved more than anybody. I desired to satisfy my lust with her, but she refused. Subsequently, a year of famine forced her to approach me. I gave her one hundred and twenty Dinars on the condition that she would yield herself to me. So she agreed and when I was able to get a hold on her she said: It is not permitted for you to break the seal of virginity except by its lawful right (that, is by marriage). I restrained myself from falling upon her and I walked away from her, though she was the most beloved of people to me, and I left the Dinars with her. O Allah! If I had done so to please You, then relieve us from the distress that we are suffering. So again the rock moved a little resulting in a small opening; but they were still unable to get out. Nabi Sallallahu 'alaihi wasallam then said that the third one invoked: O Allah! I hired the services of some labourers and paid all of them their wages except one, who departed without taking what was due to him. I invested his wage in a business and the business prospered immensely. He came back to me after a long time and said: O slave of Allah! Pay me my due. I replied: All that you see is yours: camels, cattle, sheep and slaves. He said: O slave of Allah! Do not make fun of me. So I said: I am not joking with you. So, he took all of it and drove away not leaving anything. O Allah! If I had done so, to please You, then relieve us from this distress. So the rock moved aside, and they got out walking freely. (Bukhari)
6. Abu Sa'id Al Khudri Radiyallahu 'anhu narrates: I heard Rasulullah Sallallahu 'alaihi wasallam saying: Anybody amongst you who sees an evil should change it with his hands; if he is unable to do so, then with his tongue; if he is unable to do this (even), then by his heart and this is the weakest form of Man. (Muslim)
Note: To change it by his heart means that one should at least consider it a vice in his heart and should supplicate for its change.
7. Abu Sa'id Khudri Radiyallahu 'anhu narrates that a man came to NabT Sallallahu 'alaihi wasallam and said: O Rasulallah! Advise me.He advised (amongst other things): Protect your tongue except for good. Undoubtedly, by this you will overcome Shaitan. (majma-'uz-Zawaid)