“In black seed there is healing for every disease, except the Sam.” "Sam means death. And black seed is Shuwniz."  

أَنَّهُ سَمِعَ رَسُولَ اللَّهِ ﷺ يَقُولُ إِنَّ فِي الْحَبَّةِ السَّوْدَاءِ شِفَاءً مِنْ كُلِّ دَاءٍ إِلاَّ السَّامَ وَالسَّامُ الْمَوْتُ وَالْحَبَّةُ السَّوْدَاءُ الشُّونِيزُ  

“I heard Salim bin ‘Abdullah narrating from his father that the Messenger of Allah ﷺ said: ‘You should eat this black seed, for in it there is healing from every disease, except the Sam (death).’”  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ عَلَيْكُمْ بِهَذِهِ الْحَبَّةِ السَّوْدَاءِ فَإِنَّ فِيهَا شِفَاءً مِنْ كُلِّ دَاءٍ إِلاَّ السَّامَ  

“We went out and with us was Ghalib bin Abjar. He fell sick along the way, and when we came to Al-Madinah he was sick. Ibn Abu ‘Atiq came to visit him and said to us: ‘You should use this black seed. Take five or seven (seeds) and grind them to a powder, then drop them into his nose with drops of olive oil, on this side and on this side. For ‘Aishah narrated to them that she heard the Messenger of Allah ﷺ say: “This black seed is a healing for every disease, except the Sam.” I said: “What is the Sam?” He said: “Death.”  

وَقَالَ لَنَا عَلَيْكُمْ بِهَذِهِ الْحَبَّةِ السَّوْدَاءِ فَخُذُوا مِنْهَا خَمْسًا أَوْ سَبْعًا فَاسْحَقُوهَا ثُمَّ اقْطُرُوهَا فِي أَنْفِهِ بِقَطَرَاتِ زَيْتٍ فِي هَذَا الْجَانِبِ وَفِي هَذَا الْجَانِبِ فَإِنَّ عَائِشَةَ حَدَّثَتْهُمْ أَنَّهَا سَمِعَتْ رَسُولَ اللَّهِ ﷺ يَقُولُ إِنَّ هَذِهِ الْحَبَّةَ السَّوْدَاءَ شِفَاءٌ مِنْ كُلِّ دَاءٍ إِلاَّ أَنْ يَكُونَ السَّامُ قُلْتُ وَمَا السَّامُ قَالَ الْمَوْتُ