Surah Al-Baqarah (The Cow), Verse 27

الَّذِیْنَ یَنْقُضُوْنَ عَهْدَ اللّٰهِ مِنْ بَعْدِ مِیْثَاقِهٖ وَیَقْطَعُوْنَ مَاۤ اَمَرَ اللّٰهُ بِهٖۤ اَنْ یُّوْصَلَ وَیُفْسِدُوْنَ فِی الْاَرْضِ اُولٰٓىِٕكَ هُمُ الْخٰسِرُوْنَ ۟

Allazeena yanqudoona 'ahdal laahi mim ba'di meesaaqihee wa yaqta'oona maaa amaral laahu biheee ai yoosala wa yufsidoona fil ard; ulaaa'ika humul khaasiroon

“Those who break Allah's Covenant after it is ratified, and who sunder what Allah Has ordered to be joined, and do mischief on earth: These cause loss (only) to themselves.”

Quran 2:27 (Yusuf Ali Translation)