عَنْ أَبِي هُرَيْرَةَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَا أَنْزَلَ اللَّهُ دَاء إِلا أنزل لَهُ دَوَاء» . رَوَاهُ البُخَارِيّ
Translation
Aba Huraira told of hearing God’s messenger say

“Nigella seed is a remedy for every disease but sam.” Ibn Shihab said sant is death and the nigella seed is shuniz.* (Bukhari and Muslim.)* Taj al-’arus says this is a Persian word which came to be used by Arabs. It indicates a seed of a species of nigella.

Comment

Medicine and Spells - Mishkat al-Masabih 4520

"Nigella seed is a remedy for every disease but sam." Ibn Shihab said sam is death and the nigella seed is shuniz. (Bukhari and Muslim.)

Commentary on the Prophetic Remedy

This noble hadith establishes the comprehensive healing properties of black seed (nigella sativa) as affirmed by the Prophet Muhammad (peace be upon him). The exception "but sam" refers to death itself, indicating that while this blessed seed possesses curative properties for all ailments, it cannot prevent the appointed time of death decreed by Allah.

The clarification by Ibn Shihab that "sam" means death reinforces the understanding that only Allah controls life and death. The term "shuniz" mentioned is of Persian origin, demonstrating how Islamic tradition incorporates beneficial knowledge from various cultures while maintaining theological purity.

Scholars have interpreted this hadith as encouraging the use of natural remedies while recognizing that ultimate healing comes from Allah. The black seed serves as a means (asbab) through which divine cure may manifest, but the believer's trust remains firmly in the Creator rather than the creation.

Juridical Rulings and Applications

The majority of scholars consider the use of black seed as recommended (mustahabb) based on this hadith. It may be used both as preventive medicine and as treatment for existing conditions.

Modern scientific research has confirmed many of the traditional uses of black seed, identifying anti-inflammatory, antioxidant, and antimicrobial properties. This harmony between divine revelation and scientific discovery strengthens the believer's faith.

When using such remedies, the believer should maintain proper intention, reciting the name of Allah and seeking cure through His permission, recognizing that all healing ultimately comes from the Almighty.