Muhammad as-Sadiq (ع)...
Muhammad as-Sadiq (ع), it has been stated that “Tasnim is the most blessed of drinks in heaven, from which Muhammad and his Noble Progeny drink.
The rest of the people of heaven drink from a mixture of that.”[^15] The cupbearer of that drink is Allah (awj) Himself[^16] and the chalice will be the truth of knowledge and love towards Him.[^17] From what we have said, we can understand that just as in this world people differ in their degrees of perfection; in heaven they also have different degrees of perfection. Their share of the blessings of paradise is equivalent to their spiritual capacity.
That is why they have been called by different names in the Noble Qur`an. What is certain is that the blessings of heaven are filled with pleasure and happiness, but not exactly like the pleasures of this world. Brief Answer “Sharab” means something which can be drunk and “tahur” means that which is in itself pure and uncontaminated and also makes other things pure. We can gather from various verses that in heaven there are various kinds of drinks that are pure and refreshing.
The term “Sharaban Tahuran” has been mentioned in one of these verses: “Their Lord will serve them with the pure drink. ”[^18] There are three views as to what this drink is: Some have said this drink is what believers will drink in paradise after having eaten heavenly foods. This drink will clear all internal wastes. The only thing left will appear in the form of a fragrant perspiration on the skin. Others have taken this drink to be spiritual blessings for spiritual progress.
As narrated from Imam Ja’far b. Muhammad as-Sadiq (ع), “When the believer drinks the ‘pure drink’ he forgets everything other than Allah and turns solely towards his Master.” A narration from Imam Muhammad b. ‘Ali al-Baqir (ع) says “When the believers drink from it Allah cleans their hearts from envy.” A third group has combined the previous two opinions.
They have said that since man is a beautiful combination of the dark soil and a divine soul, he needs not only material sustenance but also spiritual blessings. Just as the spiritual wayfaring of people differs so too does the rewards they receive in heaven.
In some verses of the Noble Qur`an the drinks in paradise have been mentioned in very beautiful phrases: the most beautiful cup-bearers; tall with pretty faces and deep-set eyes, going around with chalices of a pure drink amongst the believers in heaven; a very clear drink that gives them an indescribable feeling.