The gates of Paradise will be opened on Mondays and Thursdays and every servant of (Allah Subhanahu wa Ta’Ala) 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.” Quoted from Hadith e Qudsi.The hadith was related in Muslim,Malik and Abu Dawud