1. The Messenger of Allah (sallaAllahu ‘alayhi wasallam) was sitting with a group of the sahabah (RAA) in the masjid and he said “A man will now enter [who is] from the people of Paradise.” and a sahabi walked in. Later it happened again, and then a third time. ‘Abdullah ibn ‘Amr ibn al-‘aas (RAA) wanted to find out what was so special about this man, so he asked the man if he can stay over his house for 3 days. (He made up an excuse).
The man allowed him to stay. ‘Abdullah noticed that the man didn’t do anything out of the ordinary: He didn’t fast all the time, he slept some of the night and prayed some of the night, and so on. So after the 3 days, ‘Abdullah told him the real reason why he requested to stay with him, and he asked him what it was that could be the reason why he was from the people of Jannah. The man (RA) couldn’t think of anything, but after a bit he said “Every night, before I go to sleep, I forgive whoever has wronged me. I remove any bad feelings towards anyone from my heart.”
2. “It is not permissible for a Muslim to have estranged relations with his brother beyond three nights, the one turning one way and the other turning the other way when they meet; the better of the two is one who is the first to give a greeting.”