2. Al-Baqara (The Cow)

Surah: 2   Aya: 104

104. Ya ayyuha allatheena amanoo la taqooloo raAAina waqooloo onthurna waismaAAoo walilkafireena AAathabun aleemun
  

  Translation

104. O you who believe! Say not (to the Messenger Peace be upon him ) Râ'ina but say Unzurna (Do make us understand) and hear. And for the disbelievers there is a painful torment. (See Verse 4:46)