Bukhari

Hadith Commentary:
That is, in reality, the food and drink of Paradise in this case would make your fasting appear outwardly as a continuous fast, but not in its true sense.
However, some have said that by food and drink, a figurative meaning is intended: that He (Allah) continues to grant me strength, which you obtain through eating and drinking.
Sawm wisal refers to that fast in which nothing is eaten even at the time of iftar (breaking the fast) and suhoor (pre-dawn meal), and the fast is continued without interruption.

Hadith Commentary:
Vocabulary of the Hadith:
(1)
al-ta‘am-muq:
To go into depth and profundity,
to exaggerate in a matter,
to adopt severity and extremism.
To exceed the limits.
The mention of "the beginning of Ramadan" is a mistake of the narrator, because it does not correspond or align with the subsequent words,
and it is also contrary to the aforementioned narration.
Therefore, here as well, it should be "at the end of Ramadan,"
as is found in some manuscripts.

(2)
azallu:
I spend the day.
abeet:
I spend the night.

(3)
tamadalna:
madalna:
The days become long, the days increase.

English Commentary:
1:
Saum Wisal (continuous fasting) is when a person deliberately does not break his fast for two or more days, continuously fasting without eating or drinking anything at night, nor even at the time of suhoor (pre-dawn meal). Saum Wisal was permissible for the Prophet sallallahu alayhi wa sallam, but it is not permissible for the ummah.

2:
“My Lord gives me food and drink”—the majority have interpreted this figuratively, meaning that the strength which is usually obtained from eating and drinking, Allah Ta’ala grants me that strength without my eating or drinking. Some have taken it literally, understanding by eating and drinking the food and drink of Paradise. Hafiz Ibn al-Qayyim rahimahullah says: What is meant is that Allah Ta’ala nourishes you with such spiritual sustenance from His gnosis (ma‘arif) that your heart is filled with the delight of whispering and intimate conversation (munajat) with Him. Your eyes are cooled by nearness to Allah, you are intoxicated by the blessing of His love, and your longing for His presence increases. This is the nourishment that is granted to you by Allah. This spiritual nourishment is such that it would suffice you for many days, making you independent of worldly food.