from ʿAṭṭāf, from ʿAbd Allāh ibn ʿUthmān ibn al-Arqam, from his father, from his grandfather. It was recorded by Ibn Mandah and others, and this is the correct version." I said: It appears as "from his father" here, and I suspect it is a slip of the pen by the ḥāfiẓ, or an insertion by some copyists, as it is not mentioned in all the preceding sources, but rather it is "from ʿAbd Allāh ibn ʿUthmān ibn al-Arqam, from his grandfather." And so it is in "al-Taʿjīl," where it is said: "He narrated from his grandfather, and he was a Companion. And from him, Yaḥyá ibn ʿImrān, there is some doubt." From this analysis, it is concluded that the chain of the ḥadīth revolves: firstly, around ʿAbd Allāh ibn ʿUthmān ibn al-Arqam from his grandfather al-Arqam. Secondly, that ʿAṭṭāf ibn Khālid narrated it from him sometimes directly without an intermediary, but with an ambiguous chain not mentioning hearing, and sometimes he narrated it through Yaḥyá ibn ʿImrān from him. And he was followed in this. Accordingly, we can say: The ḥadīth is indeed from the narration of Yaḥyá ibn ʿImrān from ʿAbd Allāh ibn ʿUthmān from his grandfather al-Arqam. Thus, it becomes clear to us that there are two issues in this isnād: firstly, this ʿAbd Allāh ibn ʿUthmān is only known from this narration, and he was mentioned by al-Bukhārī and Ibn Abī Ḥātim in their books from the narration of ʿAṭṭāf, without mentioning any criticism or endorsement, but al-Bukhārī mentioned him inversely: "ʿUthmān ibn ʿAbd Allāh ibn al-Arqam"! This is how it appeared in the narration of al-Ṭabarānī and al-Ḥākim mentioned earlier, and Ibn Abī Ḥātim repeated it! This confirms that the man is unknown, and it is surprising that he is not mentioned in "al-Mīzān" or "al-Lisān." Even more surprising is the mention by Ibn Ḥibbān