and Yaḥyá ibn Sām is considered acceptable by the ḥāfiẓ. Aḥmad (5/150) said: Sufyān narrated to us, two narrated to us from Mūsá ibn Ṭalḥah, Muḥammad ibn ʿAbd al-Raḥmān, and Ḥakīm ibn Jubayr from Ibn al-Ḥūtakiya from Abū Dharr that he said: and he mentioned something similar. In another narration of his: Sufyān said: We heard from two and three: Ḥakīm ibn Jubayr narrated to us from Mūsá ibn Ṭalḥah. Similarly, it was narrated by al-Nasāʾī, and he followed it with other aspects of disagreement regarding Mūsá ibn Ṭalḥah, some of which were mentioned by Ibn Abī Ḥātim in "al-ʿIlal" (1/267), yet he did not state which is the most preferred according to him! However, the ḥadīth has a strong supporting narration from the narration of Hammām who said: Anas ibn Sīrīn narrated to us, he said: ʿAbd al-Malik ibn Qudāmah ibn Milḥān narrated to me from his father, he said: "The Messenger of Allāh (ṣallá Allāhu ʿalayhi wa-sallam) used to command us to fast on the days of the white nights: the thirteenth, fourteenth, and fifteenth." It was recorded by al-Nasāʾī and al-Bayhaqī from Anas ibn Sīrīn with this chain. Similarly, it was narrated by Aḥmad (5/27), but there is some obscurity regarding this ʿAbd al-Malik, and it is said about his father: Qatādah ibn Milḥān. Ibn Ḥibbān (946) also recorded it through the route of Shuʿbah: Anas ibn Sīrīn narrated to me, I heard ʿAbd al-Malik ibn al-Minhāl ibn Milḥān from his father with something similar. Similarly, it was narrated by Aḥmad (5/28) except that he did not say: "ibn Milḥān" and likewise it was narrated by al-Bayhaqī who said: "And we narrated from Yaḥyá ibn Maʿīn that he said: This is a mistake, it is ʿAbd al-Malik ibn Qatādah ibn Milḥān al-Qaysī." meaning as in the previous narration of Aḥmad. In summary, the ḥadīth, with all these chains, is ḥasan at the very least. And Allāh knows best