Hazrat Abdullah bin Mas'ud (may Allah be pleased with him) narrated that I went to the service of the Messenger of Allah (peace and blessings be upon him), and he had a severe fever. I said, "O Messenger of Allah! You have a very high fever." The Prophet (peace and blessings be upon him) said, "Yes, I experience fever as much as two men among you." I asked, "Is it because the reward for you is also doubled?" He replied, "Yes, that is the case. Whatever hardship befalls a Muslim, whether it is a thorn or something more painful, then just as a tree sheds its leaves, in the same way Allah the Exalted makes that hardship an expiation for his sins."

Narrated Aisha Siddiqa (may Allah be pleased with her) that the Messenger of Allah (peace and blessings of Allah be upon him) said: Whatever affliction befalls a Muslim, Allah makes it an expiation for his sins—even if a thorn pricks any part of his body, (that too becomes an expiation for that person's sins).

Hazrat Abu Saeed Khudri (may Allah be pleased with him) and Hazrat Abu Hurairah (may Allah be pleased with him) said that the Noble Prophet (peace and blessings of Allah be upon him) said: Whenever a Muslim is afflicted with any worry, illness, sorrow, distress, or grief—even if a thorn pricks him—Allah, the Exalted, makes it an expiation for his sins.

Ata bin Abi Rabah narrated that Ibn Abbas (may Allah be pleased with them) said to me, "Shall I not show you a woman of Paradise?" I said, "Certainly, show me." He said, "This black woman came to the Prophet (peace be upon him) and said, 'I suffer from epilepsy and because of it my body becomes uncovered. Please pray to Allah for me.' The Prophet (peace be upon him) said, 'If you wish, be patient and you will have Paradise, and if you wish, I will pray to Allah to cure you.' She said, 'I will be patient,' then she said, 'But my body becomes uncovered during the fits, so please pray to Allah that it does not become uncovered.' The Prophet (peace be upon him) prayed for her."

Hazrat Abdullah bin Umar (may Allah be pleased with them both) narrated that the Prophet Muhammad (peace and blessings be upon him) said: "Oppression will be darkness on the Day of Resurrection."

Hazrat Abdullah bin Umar (may Allah be pleased with them) narrated that the Messenger of Allah (peace and blessings be upon him) said: A Muslim is a brother to another Muslim, so he should not oppress him nor let him be oppressed. Whoever fulfills the need of his brother, Allah will fulfill his need. Whoever removes a calamity from a Muslim, Allah will remove one of the great calamities of the Day of Resurrection from him. And whoever conceals the faults of a Muslim, Allah will conceal his faults on the Day of Resurrection.

Hazrat Abu Musa (may Allah be pleased with him) narrated that the Messenger of Allah (peace and blessings of Allah be upon him) said: Allah Almighty gives respite to the oppressor for some days in this world, but when He seizes him, He does not let him go. The narrator stated that then the Prophet recited this verse: "And thus is the seizure of your Lord when He seizes the towns while they are committing wrong. Surely, His seizure is painful and severe."

Hazrat Jabir bin Abdullah (may Allah be pleased with him) narrated that we were in a battle (Tabuk). One of the Muhajirun kicked a man from the Ansar. The Ansari said, "O Ansar! Come to help," and the Muhajir said, "O Muhajirun! Come to help." The Messenger of Allah (peace and blessings be upon him) also heard this and said, "What is the matter? What is this call of ignorance?" The people informed him, "O Messenger of Allah! A Muhajir has kicked an Ansari." The Prophet (peace and blessings be upon him) said, "Leave this call of ignorance, for these are very filthy things." Abdullah bin Ubayy also heard this and said, "So it has come to this? By Allah! When we return to Madinah, the honorable will surely expel the mean ones from it." This news reached the Prophet (peace and blessings be upon him). Hazrat Umar (may Allah be pleased with him) stood up and said, "O Messenger of Allah! Allow me to kill this hypocrite." The Prophet (peace and blessings be upon him) said, "Leave him, so that people do not say that Muhammad (peace and blessings be upon him) kills his companions."

Hazrat Abu Musa Ash'ari (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) said: A believer to another believer is like a building, each part strengthening the other, and the Prophet (peace be upon him) interlaced the fingers of one hand with those of the other.

Narrated Nu'man bin Bashir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: You will find the believers in their mutual mercy, love, and kindness towards one another like a single body; when any part of it is in pain, the whole body suffers from sleeplessness and fever.