Khalid ibn Sa’d reported: We went out while Ghalib ibn Abjar was with us.

Khalid ibn Sa’d reported: We went out while Ghalib ibn Abjar was with us. He became sick on the way and he was still sick when we arrived in Medina. Ibn Abi Atiq came to visit him and he said to us, “Treat him with blackseed. Take five or seven seeds and crush them, and put the mixture in both nostrils, for Aisha has narrated to me that she heard the Prophet, peace be upon him, say: This blackseed is healing for all diseases except poison.” Aisha said, “What is poison?” He said, “Death.”

[Sahih Bukhari, Book 71, Number 591]

عَنْ خَالِدِ بْنِ سَعْدٍ قَالَ خَرَجْنَا وَمَعَنَا غَالِبُ بْنُ أَبْجَرَ فَمَرِضَ فِي الطَّرِيقِ فَقَدِمْنَا الْمَدِينَةَ وَهُوَ مَرِيضٌ فَعَادَهُ ابْنُ أَبِي عَتِيقٍ فَقَالَ  لَنَا عَلَيْكُمْ بِهَذِهِ الْحُبَيْبَةِ السَّوْدَاءِ فَخُذُوا مِنْهَا خَمْسًا أَوْ سَبْعًا فَاسْحَقُوهَا ثُمَّ اقْطُرُوهَا فِي أَنْفِهِ بِقَطَرَاتِ زَيْتٍ فِي هَذَا الْجَانِبِ وَفِي هَذَا الْجَانِبِ فَإِنَّ عَائِشَةَ حَدَّثَتْنِي أَنَّهَا سَمِعَتْ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ إِنَّ هَذِهِ الْحَبَّةَ السَّوْدَاءَ شِفَاءٌ مِنْ كُلِّ دَاءٍ إِلَّا مِنْ السَّامِ قُلْتُ وَمَا السَّامُ قَالَ الْمَوْتُ

5363 صحيح البخاري كِتَاب الطِّبِّ بَاب الْحَبَّةِ السَّوْدَاءِ