2. Al-Baqara (The Cow)

Surah: 2   Aya: 283

283. Wa-in kuntum AAala safarin walam tajidoo katiban farihanun maqboodatun fa-in amina baAAdukum baAAdan falyu-addi allathee i/tumina amanatahu walyattaqi Allaha rabbahu wala taktumoo alshshahadata waman yaktumha fa-innahu athimun qalbuhu waAllahu bima taAAmaloona AAaleemun
  

  Translation

283. And if you are on a journey and cannot find a scribe, then let there be a pledge taken (mortgaging); then if one of you entrust the other, let the one who is entrusted discharge his trust (faithfully), and let him be afraid of Allâh, his Lord. And conceal not the evidence for he, who hides it, surely his heart is sinful. And Allâh is All-Knower of what you do.