Anas bin Malik reported,

The Prophet ﷺ pawned his armor for some barley, and I once walked to the Prophet ﷺ carrying barley bread and rancid fat. I heard him say, "The family of Muhammad ﷺ has not had even a single sa of food from morning to evening," though they were nine households.

Bukhari 2508

Sahih

حدثنا مسلم بن إبراهيم حدثنا هشام حدثنا قتادة

عن أنس رضي الله عنه قال

ولقد رهن النبي ﷺ درعه بشعير ومشيت إلى النبي ﷺ بخبز شعير وإهالة سنخة ولقد سمعته يقول ما أصبح لآل محمد ﷺ إلا صاع ولا أمسى وإنهم لتسعة أبيات

البخاري 2508صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Collateral
Chapter
Pledges in residence, and His saying, "And if you are on a journey and cannot find a scribe, then a security deposit to be taken"
Numbering
Darussalam 2508
Bukhari 2508