Anas bin Malik reported,

The Muhajirun and the Ansar were digging the trench around Madinah, carrying the dirt on their backs while chanting, "We are the ones who pledged allegiance to Muhammad upon Islam, for as long as we live, forever."The Prophet ﷺ would respond to them, saying, "O Allah, there is no good except the good of the Hereafter, so bless the Ansar and the Muhajirun."The narrator said, They would be brought a handful of barley, which was prepared for them with rancid fat and placed before the people. The people were starving, yet the food was repulsive in the throat and had a foul smell.

Azami 7380

Sahih

عن أنس قال

جعل المهاجرون والأنصار يحفرون الخندق حول المدينة، وينقلون التراب على متونهم وهم يقولون: نحن الذين بايعوا محمدا على الإسلام ما بقينا أبدا قال: يقول النبي ﷺ وهو يجيبهم: اللهم إنه لا خير إلا خير الآخرة فبارك في الأنصار والمهاجره قال: يؤتون بملء كفي من الشعير، فيصنع لهم بإهالة سنخة توضع بين يدي القوم، والقوم جياع، وهي بشعة في الحلق، ولها ريح منتن.

الأعظمي 7380صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Foods
Chapter
Foods other than meat
Section
Eating with rancid fat
Numbering
Jami al-Kamil 7380 (2nd edition)
Azami 7380