Abu Hurairah (May Allah be pleased with him) said:
The Messenger of Allah ﷺ said, "People's deeds are presented before Allah on Mondays and Thursdays, and then every slave (of Allah) is granted forgiveness (of minor sins) if he does not associate anything with Allah in worship. But the person in whose heart there is rancour against his brother, will not be pardoned. With regard to them, it is said twice: 'Hold these two until they are reconciled'."

[Muslim].

وعن أبي هريرة رضي الله عنه قال: قال رسول الله ﷺ : "تعرض الأعمال في كل اثنين وخميس، فيغفر الله لكل امرئ لا يشرك بالله شيئا، إلا امرءا كانت بينه وبين أخيه شحناء، فيقول: اتركوا هذين حتى يصطلحا" ((رواه مسلم)).