Narrated Anas: The Prophet said, "O Bani Najjar! Suggest a price for your garden." Part of it was a ruin and it contained some date palms. Sahih Bukhari (2106)   
Narrated Abu Huraira: Allah's Apostle said, "This branch from Quraish will ruin the people." The companions of the Prophet asked, "What do you order us to do (then)?" He said, "I would suggest that the people keep away from them.'' Sahih Bukhari (3647)   
It wasnarrated that Ibn ‘Abbas said: Umar heard that Samurah hadsoldsome wine, and he said: “May Allah ruin Samurah! Does he not knowthat the Messenger of Allah (ﷺ) said: ‘May Allah curse the Jews,foranimal fat was forbidden to them, so they melted it down and soldit.’” Sunan Ibn Majah (3508)   
It was narrated that Ibn'Abbas said: "It reached 'Umar that Samurah had sold some wine, and he said: 'May Allah ruin Samurah! Does he not know that the Messenger of Allah said: May Allah curse the Jews, for animal fat was forbidden to them, but they rendered it.' Sufyan (one of the narrators) said: "Meaning: They melted it down." Sunan an-Nasa'i (4257)   
Narrated Ibn `Abbas: The Prophet stood before Musailama (the liar) who was sitting with his companions then, and said to him, "If you ask me for this piece (of palm-leaf stalk), even then I would not give it to you. You cannot avoid what Allah has ordained for you, and if you turn away from Islam, Allah will surely ruin you! " Sahih Bukhari (7551)   
Hudhaifa reported Allah's Messenger (may peace be upon him) as saying: the Dajjal would have with him water and fire and his fire would bays the effect of cold water and his water would have the effect of fire, so don't put yourself to ruin. Abu Mas'ud reported: I also heard it from Allah's Messenger (may peace be upon him). Sahih Muslim (7553)   
However, many of these sites have deteriorated or are in danger of ruin.   
However, many of these sites have deteriorated or are in danger of ruin.   
However, many of these sites have deteriorated or are in danger of ruin.   
However, many of these sites have deteriorated or are in danger of ruin.   
“Dressing a Black in a suit won't change the Black and will ruin the suit”;   
“Dressing a Black in a suit won't change the Black and will ruin the suit”;