Bukhari

Hadith Commentary:

In reality, death arrives at its appointed time; no matter what measures a person takes, no matter how many medicines he uses, no matter how wealthy or resourceful he may be, there is nothing among these that can avert death. Indeed, it is true:

﴿كُلُّ نَفْسٍ ذَائِقَةُ الْمَوْتِ﴾
[Every soul shall taste death.]

Hadith Commentary:
The time of death is fixed; it will certainly come, no matter how much medicine is used. There is no cure for it in this world. Black seed (kalonji) is, in its general sense, a remedy for every illness, although some scholars believe that from this generality, a specific meaning is intended. They say that it is not possible for all properties to be combined in a single herb such that it becomes a cure for all diseases. However, our experience is that it is as general as stated, and there is healing in it for every illness. We use it for every disease, and so far, we have not experienced any failure with it. If honey is mixed with it, it is like gold upon gold (i.e., even more beneficial). A few years ago, Darussalam prepared a compound by mixing black seed (kalonji) with honey, which was very beneficial and successful. If a few seeds are taken with water at bedtime, then, in sha Allah, there will be healing from every illness. It can be used both as a single ingredient and in combination. Hafiz Ibn Hajar rahimahullah writes that perhaps Hazrat Ghalib bin Abjar radi Allahu anhu was suffering from a cold, which is why Ibn Abi Atiq suggested administering the medicine by dropping it into the nose. (Fath al-Bari: 10/179)

Hadith Commentary: Benefits and Issues:

➊ Taking care of and cleaning the mosque is a very virtuous act. This task should not be considered insignificant.

➋ The imam should be mindful of his followers; if any of them are absent or not seen, he should inquire about them from their companions.

➌ Performing the funeral prayer (salat al-janazah) at the grave is permissible, and its method is the same as that of the regular funeral prayer. According to the majority, it is permissible to perform the funeral prayer at the grave. According to Imam Abu Hanifah rahimahullah, only the guardian (wali) of the deceased, if he has not already performed the funeral prayer, may perform it at the grave.

➍ According to Imam Malik rahimahullah, performing the funeral prayer at the grave is also not valid; this is, in his view, a special characteristic of the Prophet sallallahu alayhi wa sallam. However, this opinion is not correct, because the noble Companions radi Allahu anhum ajma'in also performed the funeral prayer along with the Prophet sallallahu alayhi wa sallam.

➎ The darkness and gloom of the grave are removed as a result of the supplications of righteous people, and the grave becomes illuminated.

Benefit:
It is established from this hadith that there is healing in black seed (kalonji), and there is no doubt whatsoever in its healing properties. It should be given to the sick. Similarly, Zamzam water and honey are also sources of healing, and their use should also be common in households.