“This transmission is sounder than the first one.” For Zāʾidah and Mālik ibn Saʿīd are both trustworthy, authoritative narrators whom the two Shaykhs and others relied upon, and they reported the ḥadith with a continuous chain; that continuity is an additional element that must be accepted. Ibn Khuzaymah likewise recorded it with a connected isnād in his Ṣaḥīḥ, as cited in al-Targhīb.

The report also has corroborating narrations, among them:

Samurah ibn Jundub wrote to his son: “To proceed: the Messenger of Allah ﷺ used to command us to build them in our homes, to perfect their workmanship, and to purify them.”

Abū Dāwūd—followed by al-Bayhaqī—recorded it through the route of Jaʿfar ibn Saʿd ibn Samurah, who said: “Khubaib ibn Sulaymān related to me from his father Sulaymān ibn Samurah, from his father Samurah.”

This chain is weak because Jaʿfar himself is weak and those above him are unknown.

It has another route that lends it some support: Aḥmad transmitted it through Baqiyyah, from Isḥāq ibn Thaʿlabah, from Makḥūl ibn Samurah ibn Jundub, who said: “The Messenger of Allah ﷺ commanded us to establish mosques in our homes and ordered us to keep them clean.”

This isnād, however, is also weak: Baqiyyah was prone to tadlīs and here narrates with ʿanʿanah; and Isḥāq ibn Thaʿlabah, as Abū Ḥātim said, is “unknown and his ḥadith is objectionable.” Moreover, Makḥūl never heard from Samurah, as al-Ḥāfiẓ notes in al-Taʿjīl.