Then He commanded the rest of creation to obey the angels, but they did not obey and said: 'There is no preference among us, and we are all servants of God.' So they were cast down from their ranks and descended to the earth, the abode of trial (Dar al-Mihnah), and they are the Tested, recurring in infancy (al-Tufuliyyah) until the mercy of God overtakes them, thus they exit from the abode of trial to purity (al-Safa'). And those are the ones about whom God said: {Those are the ones upon whom are blessings from their Lord and mercy. And it is those who are the [rightly] guided.} (Al-Baqarah: 157)."

And our Master, the Commander of the Faithful (Amir al-Mu'minin), said:

If you wish not to be harmed, then do not do [harm]

And do good, for God will reward you with its like

For all that befalls you is predestined

From God, but its origin is from your sins

And He Almighty said: {And whatever strikes you of disaster - it is for what your hands have earned.} (Ash-Shura: 30). And He Almighty said: {So whoever does an atom's weight of good will see it, And whoever does an atom's weight of evil will see it.} (Az-Zalzalah: 7-8).