|On the authority of Abu
Hurayrah (may Allah be pleased with him), who said that the Messenger
of Allah (peace and blessings of Allah be upon him) said:
"The gates of Paradise will be opened on Mondays and on Thursdays,
and every servant [of Allah] who associates nothing with Allah will
be forgiven, except for the man who has a grudge against his brother.
[About them] it will be said: 'Delay these two until they are reconciled;
delay these two until they are reconciled.'"
[Muslim (also by Malik and Abu Dawud).]