الكافي- ط الاسلامية, volume 8, page 230

296. A number of our companions, from Ahmad Bin Muhammad, from Abdullah Bin Al-Salt, from a man from the people of Balkh who said: I was with Al-Ridha (asws) in his (asws) journey to Khurasan. One day he (asws) called for the spread (for a meal) to be set up for him (asws). So there gathered around him (asws) his (asws) black friends and others. So I said, ‘May I be sacrificed for you (asws), if you (asws) could isolate the spread for these people’. So he (asws) said: ‘Muuh! (Shhhh!). The Lord (azwj) Blessed and High is One, and the mother is one, and the father is one, and the Recompense is by the deeds’.

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

297. Muhammad Bin Yahya, from Ahmad Bin Muhammad, from Ibn Sinan who said: I heard Abu Al-Hassan (asws) saying: ‘The body is built upon four, so from it is the air without which ‘the self’ cannot survive except by its (in and out) flow, and it takes out the diseases which are in the body and the decay, and the dirt (earth) which gives causes the dryness, and the energy (heat), and the food and from it the blood is generated. Indeed! Have you not seen that it (food) goes into the stomach, which digests it until it becomes soft, then cleans it? So the natural process takes the clean blood, then the residue descends along with the water, and it gives birth to the phlegm’.

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

298. Muhammad Bin Yahya, from Ahmad Bin Muhammad, from Al-Husayn Bin Yazeed Al-Nawfaly, from Al-Husayn Bin Ayn the brother of Malik Bin Ayn who said: I asked Abu Abdullah (asws) about the words which a person would say to another person, ‘جَزَاكَ اللَّهُ خَيْراً’ ‘May Allah (azwj) Reward you with goodness (Khair)’, what is meant by it?’ So Abu Abdullah (asws) said: ‘Khair’ is a river in the Paradise, a tributary from Al-Kawsar. And Al-Kawsar comes out from the Pillar of the Throne around which are houses of the successors (asws), and their (asws) Shites. On the banks of that river maids (Houries) grow. Every time one is taken, another one grows in its place, and they have been named after that river (Khair). And that is the Statement of the High (azwj): “[5:70] In them are goodly things (Khair), beautiful ones”. So if the man says to his companion, ‘May Allah (azwj) Reward you with goodness (Khaira)’, it means by that those dwellings which Allah (azwj) Mighty and Majestic has Prepared for His (azwj) elite, and the good ones from His (azwj) creatures’.

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.