ENOfficial
It was narrated that ‘Uthman bin ‘Abdul-Malik said: “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).’”
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا أَبُو سَلَمَةَ، يَحْيَى بْنُ خَلَفٍ حَدَّثَنَا أَبُو عَاصِمٍ، عَنْ عُثْمَانَ بْنِ عَبْدِ الْمَلِكِ، قَالَ سَمِعْتُ سَالِمَ بْنَ عَبْدِ اللَّهِ، يُحَدِّثُ عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ قَالَ " عَلَيْكُمْ بِهَذِهِ الْحَبَّةِ السَّوْدَاءِ فَإِنَّ فِيهَا شِفَاءً مِنْ كُلِّ دَاءٍ إِلاَّ السَّامَ " .
sunnah.com