Bukhari

Hadith Commentary:
In the narration of Tabarani, it is mentioned that when a cup of water was brought to him, he would begin drinking by first reciting "Bismillah," take three breaths in between, and at the end recite "Alhamdulillah." He said: At the beginning of drinking, say "Bismillah," and at the end say "Alhamdulillah." (Fath al-Bari)

Hadith Commentary:
(1)
The meaning of this hadith is that when drinking water, one should not drink it all in a single breath; rather, one should take three breaths during the process, and while taking a breath, the vessel should be removed from the mouth, as clarified in another hadith. Thus, it is narrated from Abu Hurairah radi Allahu anhu that the Messenger of Allah sallallahu alayhi wa sallam said:
“When any of you drinks water or the like, he should not breathe into the vessel.
If he wishes to drink again, he should remove the vessel from his mouth, and then, if he wishes, he may drink more.”
(Sunan Ibn Majah, Al-Ashribah, Hadith: 3427)
Hafiz Ibn Hajar rahimahullah, referencing Al-Tabarani, has narrated a hadith from Abu Hurairah radi Allahu anhu that the Messenger of Allah sallallahu alayhi wa sallam would take three breaths while drinking.
When he brought the cup close to his mouth, he would say “Bismillah,” and when he removed it from his mouth, he would say “Alhamdulillah.”
He would do this three times.
(Al-Mu’jam Al-Awsat by Al-Tabarani: 117/10, and Al-Sahihah by Al-Albani, Hadith: 1277)

Hadith Commentary: Benefits and Issues: The reason for reciting these two chapters is that there is a lesson and admonition for mankind in them.

In Surah Al-A‘la, it is explained that in every act of Allah, there is gradualness and order. Therefore, place your trust in your Lord; soon the time will come when your effort and striving will bear fruit, and your endeavors will be successful.

The task of the Prophet and the preacher is to convey (the message), and only those who fear Allah will listen. Success is for those fortunate ones who have purified themselves, remembered their Lord, and performed prayer (salah). Those who prefer the life of this world and its pleasures—which are temporary and perishable—over the Hereafter, which is better and everlasting, cannot attain success and prosperity. Adhering to the religion is not within their capacity.

And in Surah Al-Ghashiyah, it is explained what conditions those people will face on the Day of Resurrection who live their lives heedless of the Resurrection, and what kind of success will be granted to those who live their lives fearing the Resurrection.

Explanation:
1:
It is understood that a drink should be consumed in three breaths,
and when taking a breath, the mouth should be removed from the vessel before breathing,
so that the stomach is not burdened all at once,
and in this way, there is no resemblance to animals.
Another point is that by not breathing into the water vessel, one is protected from the risk of saliva and germs, etc., entering it.

Commentary:
Benefits and Issues:
The meaning of drinking in three breaths is that after taking a small amount of water, the vessel should be removed from the mouth, then water should be drunk again, and then a third time, as clarified in Hadith: 3427.