‘Awn b. Muhammad b. al-Qasim narrated from Hammad b. ‘Isa from al-Husayn b. al-Mukhtar from Usama al-Shahham, who said: ‘I heard Abu ‘Abd Allah, peace be upon him, say: "Our grandfather, blessings of Allah be on him, did not take anything for fever except ten dirhams weight of sugar (al-sukkar) with cold water on an empty stomach."’
‘Awn narrated from Abu ‘Isa from al-Husayn from Abu Usama, who said: ‘I heard al-Sadiq, peace be upon him, say that there is twice as much fever among the descendants of the Prophets, peace he upon them.’
Al-Qasari b. Ahmad b. al-Qasari narrated from Muhammad b. Yahya from Muhammad b. Sinan from Yunus b. Zabyan from Muhammed b. Isma’il b. Abu Zaynab, who said: I heard al-Baqir, peace he upon him, say: “Fever is expelled in three things: vomit, sweat (al-‘araq) and diarrhea.”
Al-Sirri b. Ahmad b. al-Sirri narrated from Muhammad b. Yahya al-Armani from Muhammad b. Sinan from Al-Ridha’, peace be upon him, who said: ‘Musa b. Ja’far, peace be upon him, was ill and the learned came to him with medications, that is the physicians, and they began prescribing marvelous things. I heard him say: “The idea of it! Confine yourselves to the chief of these medicines— myrobalan (al-ihlilaj), fennel (al-raziyanaj), and sugar. [Take it] at the beginning of the summer for three mouths, three times a month, and at the beginning of the winter for three months, three days a month, three times. Let the place of the fennel be from near the gummastic (mastaka) and one will not fall ill except for the illness of death.”
‘Abd Allah b. Bistam narrated from Kamil from Muhammad b. Ibrahim al-Ju’fi from his father that he said: I called on Abu ‘Abd Allah, peace be upon him, and he said: “I see you looking pale.” I replied: “I have the quartan fever (humma al-rib’).” He said: “What about the blessed, the good [remedy]. Grind sugar and add it to water. Drink it on an empty stomach whenever you want a drink of water.” He [al-Ju’fi’s father] said: I did that and the fever did not recur.
‘Abd Allah narrated from Abu Zakariyya Yahya b. Abu Bakr from al-Hadrami that Abu al-Hasan the first [i.e. Musa al-Kazim], peace be upon him, wrote the following for him when his son was suffering from quartan fever. He instructed him to write: ‘In the Name of Allah, Jibra’il’, on his right hand; ‘In the Name of Allah. Mika’il’, on his left hand; ‘In the Name of Allah, Israfil’, on his right foot; ‘In the Name of Allah, therein they shall see neither sun nor bitter cold (76:13)’, on his left foot; and, ‘In the Name of Allah, the Mighty, the Omnipotent’, between his shoulders. He [Abu al-Hasan] said: “Whosoever has doubts, it will not benefit him.”