On the authority of Abu Sa'id (may Allah be pleased with him), who said that the Messenger of Allah (ﷺ) said: Let not any one of you belittle himself. They said: O Messenger of Allah, how can any one of us belittle himself? He said: He finds a matter concerning Allah about which he should say something, and he does not say [it], so Allah (mighty and sublime be He) says to him on the Day of Resurrection: What prevented you from saying something about such-and-such and such-and-such? He say: [It was] out of fear of people. Then He says: Rather it is I whom you should more properly fear. It was related by Ibn Majah with a sound chain of authorities
On the authority of Abu Hurayrah (may Allah be pleased with him), who said that the Messenger of Allah (ﷺ) said that Allah the Almighty said: There are three (1) whose adversary I shall be on the Day of Resurrection: a man who has given his word by Me and has broken it; a man who has sold a free man (2) and has consumed the price; and a man who has hired a workman, has exacted his due in full from him and has not given him his wage. (1) i.e. types of men. (2) i.e. a man who has made a slave of another and has sold him. It was related by al-Bukhari (also by Ibn Majah and Ahmad ibn Hanbal)
On the authority of Abu Hurayrah (may Allah be pleased with him), who said that the Messenger of Allah (ﷺ) said: Allah will say on the Day of Resurrection: Where are those who love one another through My glory? Today I shall give them shade in My shade, it being a day when there is no shade but My shade. It was related by al-Bukhari (also by Malik)
On the authority of Abu Hurayrah (may Allah be pleased with him), who said that the Messenger of Allah (ﷺ) 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. It was related by Muslim (also by Malik and Abu Dawud)