When one of you puts on his sandals, let him begin with the right, and when he removes them, let him begin with the left. If the strap of one of your sandals breaks, do not walk in a single sandal. Either remove them both or wear them both.
حدثنا سفيان عن أبي الزناد عن الأعرج
إذا انتعل أحدكم فليبدأ باليمين وخلع اليسرى وإذا انقطع شسع أحدكم فلا يمش في نعل واحد ليحفهما جميعا أو لينعلهما جميعا
Its chain of transmission is sahih, and outwardly it is a stopped report (mawquf), like the one before it. But its being connected to the Prophet (marfu) is also established, for Malik related it in Muwatta 916 with the same meaning, though he made it into two separate hadiths, both from Abu Zinad, from Araj, from Abu Hurairah, that the Messenger of Allah ﷺ said. Bukhari likewise related it, 10:261–263, as two hadiths, by way of Malik. And Muslim related, 2:159, only the prohibition against walking in a single sandal, by way of Malik. Something similar in meaning has already passed, in somewhat abbreviated form, at 7179, from the report of Muhammad bin Ziyad from Abu Hurairah, as a marfu report.Al-shisi, with the shin vowelled with kasra and the sin unvowelled, Ibn Athir said, is one of the straps of the sandal, the one that passes between the toes and whose end is inserted into the hole in the front of the sandal that is tied to the strap, and the strap is the leather thong in which the shisi is knotted.As for his saying "in a single sandal" (fi nalin wahid), this is how it appears in H and M, with wahid in the masculine form. In K it appears as wahidah, in the feminine. Now nal (sandal) is stated in the lexicons, Nihayah, Lisan, Misbah, and Qamus, to be grammatically feminine. However, in Nihayah, followed by the author of Lisan, it is mentioned that a man complained to him about a man from the Ansar, saying, "O best of those who walk in a single sandal (na'l fard)," where na'l is feminine, meaning the sandal that is worn for walking, describing it with fard, which is masculine, because its femininity is not a true grammatical feminine. And fard means the sandal that has not been layered or doubled, but is a single layer only. This can serve as a justification for what is established here, describing the sandal with wahid, which is masculine.