Saad bin Abu Waqqas reported,

I saw myself as one of seven men with the Prophet ﷺ, and we had nothing to eat except the leaves of the hubla tree, until one of us would pass droppings like a sheep. Then the tribe of Banu Asad came to reprimand me over Islam. I would indeed be a loser, and my efforts wasted, if that were so.

Azami 7398

Sahih

عن سعد قال

رأيتني سابع سبعة مع النبي ﷺ ما لنا طعام إلا ورق الحبلة- أو الحبلة- حتى يضع أحدنا ما تضع الشاة، ثم أصبحت بنو أسد تعزرني على الإسلام، خسرت إذا وضل سعيي.

الأعظمي 7398صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Foods
Chapter
Foods other than meat
Section
Eating leaves of the grapevine
Numbering
Jami al-Kamil 7398 (2nd edition)
Azami 7398