"There is no one who dies but he shall regret." They said: "What shall he regret over O Messenger of Allah?" He said: "If he was a good doer, he regrets that he did not do more, and if he was an evil doer, he regrets that he did not stop."
"In the end of time there shall come men who will swindle the world with religion, decieving the people in soft skins of sheep, their tongues are sweeter than sugar and their hearts are the hearts of wolves. Allah [Mighty and Sublime is He] says: 'Is it me you try to delude or is it against me whom you conspire? By Me, I swear to send upon these people,among them, a Fitnah that leaves them utterly devoid of reason."
"Indeed Allah, Most High, said:'I have created creatures whose tongues are sweeter than honey and their hearts are more bitter than aloes. So by Me, I swear to abase them with a Fitnah, leaving them utterly devoid of reason. Is it Me whom they try to delude, or it is against Me whom they conspire?'"
"I said: 'O Messenger of Allah! What is the means to salvation?' He said: 'That you control your tongue, suffice yourself your house, and cry over your sins.'"
"When the son of Adam wakes up in the morning, all of his body parts bow to the tongue and say: 'Fear Allah regarding us, we are only part of you. If you are straight we are straight and if you are crooked we are crooked."
I said: "O Messenger of Allah! Inform me about a matter that I may hold fast to." He said: 'Say: My Lord is Allah, then be steadfast.' I said: "O Messenger of Allah! What do you fear most for me?" So he took hold of his tongue and said: 'This.'"
"Do not talk too much without remembrance of Allah. Indeed excessive talking without remembrance of Allah hardens the heart. And indeed the furthest of people from Allah is the harsh-hearted."