It is narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Indeed, Allah Almighty has not sent down any disease (or he said: has not created) without sending down a cure for it (or he said: without creating a medicine for it); whoever came to know it knows it, and whoever remained ignorant of it remains ignorant of it, except for 'sam'." The Companions said: "O Messenger of Allah! What is 'sam'?" He (peace and blessings be upon him) said: "Death."

It is narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) that a man came to the Messenger of Allah (peace and blessings be upon him) and said: "O Messenger of Allah! My brother has a complaint in his stomach." He (peace and blessings be upon him) said: "Give him honey to drink." He came back and said: "I gave him honey to drink, but it has only increased his diarrhoea." The third or fourth time, the Messenger of Allah (peace and blessings be upon him) said: "Allah has spoken the truth, and your brother's stomach has lied." So he went and gave him honey to drink, and he recovered. This hadith is sahih (authentic) on the condition of Imam Muslim, but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that whenever Sulayman (peace be upon him), the Prophet of Allah, stood at his place of prayer, he would see a tree growing in front of him. He would ask it: "What is your name?" It would say: "My name is such-and-such." He would ask: "What are you for?" It would say: "For such-and-such a purpose." If it was for medicine, it would be written down, and if it was for planting, it would be planted. One day, while he was praying, he saw a tree growing in front of him. He asked it: "What is your name?" It said: "Al-Kharrub (the carob)." He asked: "What are you for?" It said: "For the ruin of this House (Bayt al-Maqdis)." Sulayman (peace be upon him) supplicated: "O Allah! Conceal my death from the jinn, so that mankind may come to know that the jinn do not know the unseen." The narrator said: He carved a staff from that wood and leaned upon it. Then termites ate it, and he fell. When they estimated how long the termites had been eating it, they found it to be a period of one year. Then it became clear to mankind that if the jinn had known the unseen, they would not have remained for a year in the humiliating punishment (and Ibn Abbas (may Allah be pleased with them both) used to recite it this way). Then the jinn thanked the termites, and they would bring water to them wherever they were. This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyiduna Hakim bin Hizam (may Allah be pleased with him) that he said: "O Messenger of Allah! The incantations (ruqyah) that we recite, and the medicines with which we treat ourselves, can these avert anything of Allah's decree?" He (peace and blessings be upon him) said: "These (incantations and medicines) are themselves part of Allah's decree."

It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Make it binding upon yourselves to use cow's milk, for it grazes from every kind of tree, and it is a cure for every disease." This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Hold fast to the two sources of cure: honey and the Qur'an." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.

It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "When one of you has a fever, let him pour cold water over himself at the time of sahar (before dawn) for three nights." This hadith is sahih (authentic) on the condition of Imam Muslim, but the two Shaykhs (Bukhari and Muslim) did not record it. And its supporting hadith (shahid) is the following:

It is narrated from a maidservant of Sayyiduna al-Zubayr (may Allah be pleased with him) that she said: Whenever al-Zubayr (may Allah be pleased with him) had a fever, the Prophet (peace and blessings be upon him) would order us to cool water and then pour it over him.

It is narrated from Abu Jamrah that he said: I used to push people back (because of the crowd) from around Sayyiduna Ibn Abbas (may Allah be pleased with them both). Then I stayed away from his gathering for a few days. He asked: "What kept you away?" I said: "Fever." So he said that the Messenger of Allah (peace and blessings be upon him) said: "Fever is from the intense heat of Hell, so cool it with water." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it with this addition.

It is narrated from Sayyiduna Samurah bin Jundub (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Indeed, fever is a piece of the Fire, so cool it away from yourselves with water." The narrator said: And when the Messenger of Allah (peace and blessings be upon him) had a fever, he would call for a waterskin of water, pour it over his head and take a bath. This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it with this addition.