She said, "I prepared the travel provisions for the Messenger of Allah ﷺ in the house of Abu Bakr when he intended to migrate to Medina. We could not find anything with which to tie up the food bag and the waterskin, so I said to Abu Bakr, 'By Allah, I have nothing to tie them with except my waist-belt.'He said, 'Tear it in two and tie the waterskin with one piece and the food bag with the other.'So I did, and that is why I was named Dhat al-Nitaqayn, the woman of the two belts."
صنعت سفرة رسول الله ﷺ في بيت أبي بكر حين أراد أن يهاجر إلى المدينة، قالت: فلم نجد لسفرته ولا لسقائه ما نربطهما به، فقلت لأبي بكر: والله ما أجد شيئا أربط به إلا نطاقي، قال: فشقيه بإثنين فاربطيه: بواحد السقاء وبالآخر السفرة، ففعلت فلذلك سميت ذات النطاقين.
Bukhari narrated it in the Book of Jihad (2979) from Ubayd bin Ismail, who said, Abu Usama narrated to us, from Hisham, who said, my father informed me, and Fatimah also narrated to me, from Asma, who said, and then he mentioned it.