Muhammad b. Abul Mujalid reported ‘Abdallah b. Abu Aufa as saying he asked whether they set aside the fifth of food in the time of God’s Messenger and received the reply that on the day of Khaibar they captured food and a man would come and take as much of it as he needed and then go away. Abu Dawud transmitted it.
Hadith Referenceمشكوة المصابيح / كتاب الجهاد / 4020
Hadith Gradingالألبانی:لم تتمّ دراسته | زبیر علی زئی:إسناده صحيح
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «إسناده صحيح، رواه أبو داود (2704)»