It is narrated from Sayyidah Duba'ah bint al-Zubayr bin Abd al-Muttalib (may Allah be pleased with her) that she said: "The Messenger of Allah (peace and blessings be upon him) had a blessed sandal whose middle part was narrow (waisted)."
This hadith is not narrated from Sayyidah Duba'ah (may Allah be pleased with her) except with this chain, and al-Zubayr bin Bakkar (may Allah have mercy on him) is alone in narrating it.
Hadith Referenceالمعجم الأوسط / باب الميم / 6466
Hadith Gradingمحدثین:إسناده ضعيف لانقطاعه
Hadith Takhrij«قال الهيثمي: وقد سقط من سنده راويان بعد الزبير بن بكار «مجمع الزوائد ومنبع الفوائد، ج 5، ص 138»»