17. Al-Isra (Isra', The Night Journey, Children Of Israel)

Surah: 17   Aya: 53

53. Waqul liAAibadee yaqooloo allatee hiya ahsanu inna alshshaytana yanzaghu baynahum inna alshshaytana kana lil-insani AAaduwwan mubeenan
  

  Translation

53. And say to My slaves (i.e. the true believers of Islâmic Monotheism) that they should (only) say those words that are the best. (Because) Shaitân (Satan) verily, sows disagreements among them. Surely, Shaitân (Satan) is to man a plain enemy.