Verify the facts yourself

The judicious person is he who, when hearing some news, does not hurry into judgment based merely on what he hears. Instead, he verifies and authenticates what he hears; he thinks things over and he consults with wiser and more experienced people. It has been rightly said that to err by forgiving someone is better than to err by punishing him.

(And afterwards you become regretful for what you have done.)

(Qur’an 49: 6)