Dua From the Quran 21

Dua From the Quran 21 Rabbana zalamna anfusana wa in lam taghfirlana  watar hamna lana koonanna minal khasireen Our Lord we have sinned against ourselves and unless You grant us forgiveness and  bestow Your mercy upon us we shall most certainly be lost SURAH ALARAF VERSE 23 
http://dlvr.it/S0CGJ3