The Ruby and Emerald

3. A number of our people have narrated from Sahl ibn Ziyad from Harun ibn Muslim from a man from a certain persons of our people, al-Hassan ibn Ali ibn al-Fadl called Sikbaj from Ahmad ibn Muhammad from ibn abu Nasr, Sahib al-’Anzal who worked for certain tasks of al-Madiy عليه السلام, has said the following: “He (the Imam), Alayhi al-Salam, one day said to me dictating in a book, ‘Using emerald in a ring is a comfort which is free of difficulties.’”