"truthful, but he may err." I said: And the rest of its narrators are trustworthy, so the isnād is good. As for al-Haythamī's statement in "al-Awsaṭ" about Aḥmad ibn al-Qāsim, if he is al-Rayyān, then he is weak, and if he is someone else, I do not know him, but the rest of its narrators are trustworthy. I said: This is an oversight on his part, which his imitator Dr. Maḥmūd al-Ṭaḥḥān followed without commenting on it, as is his habit. All his comments and analyses are mere repetitions without any verification, but rather pure imitation. I say this because this Aḥmad ibn al-Qāsim is not al-Rayyān, but rather Aḥmad ibn al-Qāsim ibn Masāwir al-Jawharī. He mentioned him among the ḥadīths listed under his biography from ḥadīth (505) to (611), explicitly stating in the first and last of them: "Aḥmad ibn al-Qāsim ibn Masāwir al-Jawharī narrated to us..." and explicitly stating in another ḥadīth (513) that it is ibn Masāwir. He is trustworthy and has a biography in "Tārīkh Baghdād" (3/349). The ḥadīth permits prayer in the blanket that the sleeper covers with. It is supported by the ḥadīths that mention the Prophet (ṣallá Allāhu ʿalayhi wa-sallam) used to pray wearing a cloak, and some of his wives would wear it while menstruating. Some of these are found in "Ṣaḥīḥ Abī Dāwūd" (393-394), and they are not contradicted by ʿĀʾishah's ḥadīth (392): "He would not pray in our blankets," as it is understood to be out of piety or caution, fearing there might be impurity, as in the ḥadīth of Muʿāwiyah (raḍiya Allāhu ʿanhu) when he asked his sister Umm Ḥabībah, the wife of the Prophet (ṣallá Allāhu ʿalayhi wa-sallam): Did the Messenger of Allāh (ṣallá Allāhu ʿalayhi wa-sallam) pray in the garment he had relations with her in? She said: "Yes, if he did not see any impurity on it." It was narrated by the authors of the Sunan except for al-Tirmidhī, and its isnād is authentic, and it is included in "Ṣaḥīḥ Abī Dāwūd" (390).