Allah Almighty says: {and do not cooperate in sin and transgression} [Al-Mā’idah: 2] This chapter contains the same Hadīths in the previous chapter.
1539/1- Ibn Mas‘ūd (may Allah be pleased with him) reported that the Messenger of Allah (may Allah’s peace and blessings be upon him) said: “Let not anyone of my Companions convey to me anything (bad) regarding another for I like to come out to you bearing no ill-feelings.” [Narrated by Abu Dāwūd and Al-Tirmidhi] [8]
1) It is obligatory to conceal the state of a fellow Muslim and not pursue his shortcomings because doing this results in hatred and grudge.
2) The Prophet (may Allah’s peace and blessings be upon him) encourages Muslims to have good feelings for each other because it is one of the greatest reasons for their strength and unity. {And hold fast to the rope of Allah all together and do not be divided}