It is narrated from Sayyiduna Buraidah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Mushroom is the best remedy for the eyes, and Ajwa date is the fruit of Paradise, and this black seed (kalonji), when eaten mixed with salt, is a cure for every disease except death. Ibn Buraidah said: By الْحَبَّۃُ السَّوْدَائُ is meant shoneez (which is called kalonji).