2. Al-Baqara (The Cow)

Surah: 2   Aya: 239

239. Fa-in khiftum farijalan aw rukbanan fa-itha amintum faothkuroo Allaha kama AAallamakum ma lam takoonoo taAAlamoona
  

  Translation

239. And if you fear (an enemy), perfrom Salât (pray) on foot or riding. And when you are in safety, offer the Salât (prayer) in the manner He has taught you, which you knew not (before).