Asma bint Abu Bakr reported,

I prepared provisions for the Prophet ﷺ and Abu Bakr when they intended to set out for Medina. I said to my father, "I cannot find anything to tie it with except my waistband."He said, "Tear it in two."So I did, and from that I was called Dhat al-Nitaqayn, the one with two waistbands.

Azami 8664

Sahih

عن أسماء قالت

صنعت سفرة للنبي ﷺ وأبي بكر حين أرادا المدينة، فقلت لأبي: ما أجد شيئا أربطة إلا نطاقي، قال: فشقيه، ففعلت فسميت ذات النطاقين.

الأعظمي 8664صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Biography of the Prophet ﷺ
Chapter
Emigration of the Prophet ﷺ and his companions from Makkah to Madinah
Section
Asma bint Abu Bakr, she of the two waistbands
Numbering
Jami al-Kamil 8664 (2nd edition)
Azami 8664