Bukhari

Hadith Commentary:
Thus, from this it is established that there were marketplaces inside the Ka‘bah.
This is precisely the objective of the chapter.

Hadith Commentary:
(1)
According to this hadith, the existence of marketplaces or shopkeepers working in the marketplace at the location of Bayda’ is established. Imam Bukhari rahimahullah has mentioned this hadith solely to establish this point.
(2)
Although there is noise and commotion in the marketplace, there is no harm if respectable people go there to fulfill their needs.
(3)
It is also understood from this hadith that associating with evil and troublemaking people is itself a prelude to one’s own destruction.
(4)
In some narrations, the words "ashrafahum" (their nobles) are found; on this basis, an objection of scribal error (tasheef) has been raised regarding the words "aswaafahum" (their markets) as stated by Bukhari, but this is not based on reality.
(Fath al-Bari: 4/430)

Hadith Commentary: Benefits and Issues: ➊
During the journey of Hudaybiyyah, the Messenger of Allah (sallallahu alayhi wa sallam) passed by Ka‘b bin ‘Ujrah (radi Allahu anhu) and saw that he was lighting a fire under a pot, and lice were falling from his head onto his face. The Prophet (sallallahu alayhi wa sallam), without fully examining him while standing, asked him, “Are these lice causing you hardship?” Ka‘b (radi Allahu anhu) replied in the affirmative, so the Prophet (sallallahu alayhi wa sallam) told him to shave his head and to give whatever expiation (fidyah) was easily available to him.
After saying this, the Prophet (sallallahu alayhi wa sallam) departed. Later, a companion mentioned the severity of Ka‘b’s (radi Allahu anhu) suffering, so the Prophet (sallallahu alayhi wa sallam) sent for him. Due to the intensity of his pain, he was brought while being carried. The Prophet (sallallahu alayhi wa sallam) examined him closely and, seeing the severity of his suffering, said, “When I saw you earlier, I did not perceive your pain to be this severe.”
Then the Prophet (sallallahu alayhi wa sallam) immediately called for someone to shave his head and instructed him regarding the expiation (kafarah).
The Prophet (sallallahu alayhi wa sallam) had first given this ruling through hidden revelation (wahy khafi).
Later, in confirmation of this, manifest revelation (wahy jali) in the form of a Qur’anic verse was revealed.
However, in the Qur’an, the mention of expiation is in a general manner; its details and clarification are found in the hidden revelation (hadith).
From this, it is established that the Qur’an can be understood in the light of the hadith of the Prophet (sallallahu alayhi wa sallam).
In the Qur’an, only fasting and charity are mentioned, but how many fasts should be kept and how much charity should be given is not detailed or clarified.
Similarly, the explanation of the sacrificial animal (nusuk) is not given.
The details and interpretation of these matters are found in the hadith.

➋
If a muhrim (one in the state of ihram) needs to shave his head due to some affliction of the head, then by consensus he may shave his head, but he must give expiation (fidyah): either fast for three days, or feed six needy people—providing each needy person with half a sa‘ of food—or offer a sacrifice of a goat.
According to the three Imams—Imam Malik (rahimahullah), Imam Shafi‘i (rahimahullah), and Imam Ahmad (rahimahullah)—and the hadith scholars (muhaddithin, rahimahumullah), half a sa‘ of any type of grain or produce must be given.
But according to Imam Abu Hanifah (rahimahullah), half a sa‘ of wheat is to be given, while for other grains a full sa‘ must be given,
even though the hadith explicitly mentions three sa‘ of dates.
That is, half a sa‘ of dates should be given to each needy person, and the Imams agree that there is no required order between sacrifice, charity, and fasting: if one cannot offer a sacrifice, then he may fast; if he cannot fast, then he may give charity.
Rather, there is a choice—he may do whichever of the three he wishes.