Qatadah said: Hoarding does not apply to dried dates. Ibn al-Muthanna said that he (Yahya bin Fayyad) reported on the authority of al-Hasan. We (Ibn al-Muthanna) said to him (Yahya): Do not say: "on the authority of al-Hasan. " Abu Dawud said: This tradition according to us is false. Abu Dawud said: Saeed bin al-Musayyab used to hoard kernel, fodder, and seeds. Abu Dawud said: I heard Ahmad bin Yunus say: I asked Sufyan about hoarding fodder. He replied: They (the people in the past) disapproved of hoarding. I asked Abu Bakr bin Ayyash (about it). He replied: Hoard it.
Hadith Referenceسنن ابي داود / كتاب الإجارة / 3448
Hadith Gradingالألبانی:ضعيف الإسناد مقطوع | زبیر علی زئی:ضعيف, إسناده ضعيف, يحيي بن فياض :لين الحديث (تق : 7624), انوار الصحيفه، صفحه نمبر 123
Benefits and Issues: Benefit. By mentioning all these narrations, Imam Abu Dawud intends to clarify that hoarding is prohibited only for those items which are related to the basic food of humans or animals.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 3448