It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) asked a Bedouin: "Have you ever been struck by Umm Mildam (fever)?" He asked: What is Umm Mildam? He (peace and blessings be upon him) said: "It is a heat that lies between the skin and the flesh." He said: I have never experienced anything like that. He (peace and blessings be upon him) asked: "Have you ever had al-suda' (a headache)?" He asked: What is al-suda'? He (peace and blessings be upon him) said: "It is a vein that throbs in a person's head." He said: I have never had this either. When the man turned his back and left, the Messenger of Allah (peace and blessings be upon him) said: "Whoever would like to see what a man of the people of Hell is like, let him look at this man." This hadith is sahih (authentic) on the condition of Muslim, but the two Shaykhs did not record it.

Sayyidah Aishah (may Allah be pleased with her) narrates: I heard the Messenger of Allah (peace and blessings be upon him) saying: "Whenever a vein of a believer throbs (with pain), Allah forgives one of his sins in return for it, records a good deed for him, and raises him one rank." The chain of this hadith is sahih (authentic), but the two Shaykhs did not record it; and Imran bin Zayd al-Tha'labi is an elder (shaykh) from Kufah.

Sayyiduna Mu'awiyah (may Allah be pleased with him) narrates: I heard the Messenger of Allah (peace and blessings be upon him) saying: "Anything that afflicts the believer in his body and causes him harm becomes an expiation for his sins." This hadith is sahih (authentic) on the condition of the two Shaykhs, but they did not record it.

Sayyiduna Abu Hurayrah (may Allah be pleased with him) narrates: I heard the Messenger of Allah (peace and blessings be upon him) saying: "Indeed, Allah Almighty keeps testing His servant with illness until that illness wipes away every sin of his." This hadith is sahih (authentic) on the condition of the two Shaykhs, but they did not record it.

It is narrated from Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "Whenever a Muslim is afflicted with a bodily illness, Allah Almighty commands the angels who are appointed to guard him: Record for this servant of Mine, every day and night, all the good deeds that he used to do (in a state of health), for as long as he is confined in My bonds." This hadith is sahih (authentic) on the condition of the two Shaykhs, but they did not record it.

It is narrated from Sayyiduna Abd al-Rahman bin Azhar (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The example of the believing servant when he is struck by fever or its heat is just like a piece of iron that is put into the fire: its dross is removed and its pure, good part remains." The chain of this hadith is sahih (authentic); its narrators are Madinans and Egyptians, and the two Shaykhs did not record it.

Sayyiduna Abu al-Darda' (may Allah be pleased with him) narrates: I heard Abu al-Qasim (peace and blessings be upon him) saying: "Allah Almighty said: O Isa! I am going to send after you a nation who, if they receive what they love, will praise Allah, and if they are afflicted with what they dislike, will be patient seeking reward, even though they will not (by themselves) possess such forbearance or such knowledge. Sayyiduna Isa (peace be upon him) said: O my Lord! How can this be for them when they have neither forbearance nor knowledge? Allah Almighty said: I will give them from My forbearance and My knowledge." This hadith is sahih (authentic) on the condition of Bukhari, but they did not record it.

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Allah, the Mighty and Majestic, says: When I afflict My believing servant (with illness) and he does not complain about Me to those who visit him, I release him from My captivity, then I give him flesh better than his (former) flesh and blood better than his (former) blood, and he begins his deeds afresh." This hadith is sahih (authentic) on the condition of the two Shaykhs, but they did not record it.

It is narrated from Sayyiduna Abdullah bin Mughaffal (may Allah be pleased with him) that during the Jahiliyyah a certain woman was a prostitute. A man passed by her, or she passed by him, and the man stretched out his hand towards her. The woman said: Stop! Allah has done away with polytheism and brought Islam. So the man left her and turned away, and he kept looking back at her (in remorse or distraction) until his face struck a wall. The man came to the Prophet (peace and blessings be upon him) and related the whole incident, and he (peace and blessings be upon him) said: "You are a servant for whom Allah has willed good, for when Allah, the Mighty and Majestic, wills good for a servant, He hastens the punishment of his sin for him in this very world, and when He wills evil for a servant, He withholds the punishment of his sin until he is paid in full for it on the Day of Resurrection." This hadith is sahih (authentic) on the condition of Muslim, but they did not record it.

It is narrated from Sayyiduna Abu Mas'ud al-Ansari (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "A Muslim has four rights over another Muslim: to accept his invitation when he invites him, to visit him when he is ill, to respond to him when he sneezes, and to accompany his funeral when he dies." This hadith is sahih (authentic) on the condition of the two Shaykhs, but they did not record it with these words; they recorded it through the narration of al-Awza'i from al-Zuhri with the words: "The Muslim has five rights over the Muslim."