الكافي- ط الاسلامية, volume 8, page 265

384. Muhammad Bin yahya, from Ahmad Bin Muhammad Bin Isa, from Ali Bin Al-Hakam, from Kamil Bin Muhammad, from Muhammad Bin Ibrahim Al-Ju’fy who said: My father narrated to me that he came up to Abu Abdullah (asws) who (asws) said; ‘Why is it that I (asws) see you with a grim face?’ So I said, ‘I have fever’. So he (asws) said: ‘What prevents you from the blessed and good. Take the sugar and dissolve it in the water and drink it on an empty stomach and during the evening’. He said, ‘I did that, so it (fever) did not return to me’.

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

385. From him, from Ahmad Bin Muhammad, from Al-Hassan Bin Ali Bin Al-No’man, from one of our companions who said: I complained to Abu Abdullah (asws) of the aches, so he (asws) said: ‘When you go to your bed, take two (pieces) of sugar’. So he said, ‘I did it. So I was free from it, and I informed one of the doctors who was a renowned one of our city. He said, ‘From where did Abu Abdullah (asws) understand this? This is from the treasures of our knowledge. But he (asws) is the owner of Books. He probably got it from one of his (asws) Books’.

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

386. From him, from Ahmad Bin Muhammad, from Ja’far Bin Yahya Al-Khazai’e, from Al-Husayn Bin Al-Hassan, from Aasim Bin Yunus, from a man, who has narrated the following: Abu Abdullah (asws) has said to a man: ‘With what thing do you cure your sick when they have fever?’ He said, ‘May Allah (azwj) Keep you well, by these bitter medicines – by Safaayaj, and Al-Ghafas, and similar to these’. So he (asws) said: ‘Glory be to Allah (azwj), the One Who (azwj) has the Power to Free (Cure) with the bitter (medication) also has the Power to Free (Cure) with the sweet’. Then said: ‘If one of you has fever, so he should take a clean container, and place sugar in it, then recite over it what he knows from the Quran. Then he should place it underneath the stars (at night in the open), and place iron in it. So when it is the morning, pour some water on it and mix it with his hand, then drink it. So when it is the second night, increase another (piece of) sugar in it so it becomes two and a half times as much. So when it is the third night, increase another (piece of) sugar so it becomes three and a half times as much’.

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.