[2] Gentleness of our pious predecessors
In The Name of Allah, The Most Merciful, The Bestower of Mercy.
When Umar ibn Abdul Aziz -may Allah have mercy upon him- intended to punish a man, he would imprison him for three days before administering the punishment, as he disliked acting hastily in the heat of anger.
Siyar A’lam An-Nubulaa 5/ 133