10. Muhammad ibn Yahya has narrated the following: “Certain persons of our people once wrote to abu Muhammad , complaining about blood and yellowness, saying, ‘If I apply cupping, yellowness stirs up, when I delay it blood harms me, so what would you advise me in such case?’ He (the Imam) , wrote, ‘Apply cupping and after cupping eat fresh fish as kabab.’ He (the narrator) has said, ‘I repeated exactly the same question to him (the Imam). He (the Imam) wrote, ‘Apply cupping and after cupping eat fresh fish as kabab with water and salt.’ He (the narrator) has said, ‘I followed the instruction and I lived in good health and it became my food.’”