A year of severe drought struck us, and I had nothing in my possession to feed my family except some donkeys. The Messenger of Allah ﷺ had forbidden the flesh of domesticated donkeys, so I came to the Prophet ﷺ and said, "Messenger of Allah, the drought has struck us, and I have nothing in my possession to feed my family except the fat of donkeys, and you have forbidden the flesh of domesticated donkeys."He said, "Feed your family from the fat of your donkeys. I only forbade them because of those that roam through the village's filth," meaning those that feed on refuse.
حدثنا عبد الله بن أبي زياد حدثنا عبيد الله عن إسرائيل عن منصور عن عبيد أبي الحسن عن عبد الرحمن
أصابتنا سنة فلم يكن في مالي شيء أطعم أهلي إلا شيء من حمر وقد كان رسول الله ﷺ حرم لحوم الحمر الأهلية فأتيت النبي ﷺ فقلت يا رسول الله أصابتنا السنة ولم يكن في مالي ما أطعم أهلي إلا سمان الحمر وإنك حرمت لحوم الحمر الأهلية فقال أطعم أهلك من سمين حمرك فإنما حرمتها من أجل جوال القرية يعني الجلالة
[Its chain is daif] Ibn Saad reported it in al-Tabaqat 6/86, from Ubaydullah bin Musa, with this chain. Abdul-Rahman bin Maqil did not hear it from Ghalib bin Abjar , his teacher Abdul-Rahman bin Bishr needs to be examined, and the men from Mazina are all unknown narrators.