Allah Has Combined All of Medicine (at-Tibb) in One Verse of the Qur’an

All praise is due to Allah and may the prayers and salutations be upon His Messenger, to proceed:

Allah the Most High said,

وَكُلُوا وَاشْرَبُوا وَلَا تُسْرِفُوا ۚ إِنَّهُ لَا يُحِبُّ الْمُسْرِفِينَ

“…And eat and drink and be not excessive (therein)…” (al-A’raaf 7:31)

Ibn Kathir commented upon this verse:

One of the Salaf said: Allah has combined the entirety of medicine (at-tibb) in half a verse, “And eat and drink and be not excessive…”

Al-Qurtubi commented upon this verse, after mentioning that excessive eating is makrooh (disliked), he mentions the benefits of eating little:

… In eating little there are many benefits. From them that a man becomes of sounder body, of better memory, purer in understanding, (requiring) less sleep, and lighter in (his) soul…

Then he mentioned the harms of eating excessively:

… and in eating much there is the overstuffing of the stomach and putrefaction of undigested food, and from this the variety of diseases are produced, and thus he requires treatment more than what the one who eats little requires. Some of the physicians said, “The greatest treatment (dawaa’) is (appropriate) estimation of food.” And the Prophet (sallallahu alayhi wasallam) has explained this meaning sufficiently and completely which does away with the speech of the physicians, so he said, “The son of Adam does not fill a container worse than his stomach. It is sufficient for the son of Aadam to take enough morsels of food to keep his back straight (keep him able-bodied). And if it is necessary, then a third for his food, a third for his drink, and a third for his breath.”…

Then a little later al-Qurtubi says:

And it is mentioned that (the caliph) ar-Rashid used to have a shrewd Christian physician who said to Ali bin Hasan, “There is not in your Book (the Qur’aan) anything of the knowledge of medicine, and knowledge of is of two types, knowledge of the religions and knowledge of the bodies.” So he said to him, “Allaah has combined all of medicine in half a verse in our Book.” So he said, “What is it?” He said, “The saying of Allah, the Mighty and Majestic: And eat and drink and be not excessive.”…

And Imaam ad-Dhahabi in his book “at-Tibb an-Nabawi” (p. 34-35) says:

The Prophet (sallallahu alayhi wasallam) said: “The son of Aadam does not fill a container worse than his stomach. It is sufficient for the son of Aadam to take enough morsels of food to keep his back straight (keep him able-bodied). And if it is necessary, then a third for his food, a third for his drink, and a third for his breath.” This was reported by an-Nasaa’ee and at-Tirmidhi, who said, “Hasan Sahih” … and this is one from the aspects of preserving health.

Ali bin Hasan said:

“And Allah, the Sublime and Exalted has combined the whole of medicine in (just) half a verse, so He, the Most High said,

“And eat and drink and be not excessive…”

Taken from “Lives of the Salaf”

Drinking water after meals

Is drinking water after meals a sunnat or not?

A: Allāmah Ibnul Qayyim rehmatullāh ῾alayh has mentioned that the habit of  Nabi [SAW] was of not to drink immediately after eating as this is harmful to the digestion process. However, if there is a pressing need to drink immediately after that, then only drink enough to quench the thirst. One may then drink after some time elapses. NOTE: This elapsed time is estimated to be 20-30 minutes.

(Zādul Ma῾ād, Vol. 3, Pg. 114)

Drinking

Drinking manners are no less important. To start in the name of Allah is a must. Use your right hand to drink. Abo Dawood and Tirmizi related that Hafsa (RA) said ‘the Prophet SAWS used his right hand for eating and drinking. He used his left for other things [such as personal hygiene].’

Do not pour your drink down your throat in one gulp. Drink it in three sips. Ibn Abbas reported that the Prophet SAWS said ‘Do not drink like a camel. Drink twice or thrice. Say the name of Allah before drinking. Thank Allah after finishing. Do not exhale in your glass. This will irritate others and will smudge the glass or the cup. Ibn Abbas reported that the Prophet SAWS forbade exhaling in a glass or puffing into it. Do not drink directly from the jug or the container. Beside being unhygienic behaviour, others may want to drink after you who could be irritated. Abo Huraira narrated that the Prophet SAWS forbade drinking directly from the mouth of the sheepskin or the flask.