Surah Al-Isra' (The Night Journey), Verse 53

وَقُلْ لِّعِبَادِیْ یَقُوْلُوا الَّتِیْ هِیَ اَحْسَنُ اِنَّ الشَّیْطٰنَ یَنْزَغُ بَیْنَهُمْ اِنَّ الشَّیْطٰنَ كَانَ لِلْاِنْسَانِ عَدُوًّا مُّبِیْنًا ۟

Wa qul li'ibaadee yaqoolul latee hiya ahsan; innash shaitaana yanzaghu bainahum; innash shaitaana kaana lil insaani 'aduwwam mubeenaa

“Say to My servants that they should (only) say those things that are best: for Satan doth sow dissensions among them: For Satan is to man an avowed enemy.”

Quran 17:53 (Yusuf Ali Translation)