Surah Al-Hujurat (The Rooms) — Chapter 49 of the Holy Quran, a Medinan surah with 18 verses.
O those who have faith in Allah and follow whatever He legislates! Do not precede Allah or His Messenger in speech or action, and be mindful of Allah by fulfilling His commands and refrain from that which He has prohibited. Indeed, Allah is hearing of your statements, aware of your actions.