5. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Muhammad ibn Sinan from ‘Ammar ibn Marwan who has said the following: “Abu ‘Abd Allah عليه السلام, has said in one of his advices, ‘You must take notice that even if the assassin of Ali عليه السلام, who struck him (the Imam) with his sword had entrusted me with something, asked for my opinion and consultation and I had accepted, I most certainly had to return his trust safely.’”