42. We were told by Muhammed bin Hasan bin Ahmad bin Waleed, may Allah be pleased with him, that he said: We were told by Muhammed bin Hasan al-Saffar, that he said: We were told by Ahmad bin Muhammed bin Isa, from Abbas bin Ma’ruf, from Hammad bin Isa, from Huraiz, from Ibn Maskan, from Abu’l-Rabee’, that he said: I said: What is the least by which a man leaves faith? He said: An opinion, by which he sees it as being in opposition to the truth, and yet he remains on it.