Hadith #3447 (Sunan Abi Dawud)
Book: Wages (Kitab Al-Ijarah)
Narrator(s): Abu Da'ud أبو داود السجستاني الأزدي, Hmam bin Yahya bin Dinar همام بن يحيى بن دينار, Muhammad bin al-Muthna - al-Zaman محمد بن المثنى أبو موسى - الزمن, Muhammad bin Yahya bin Fiyyad محمد بن يحيى بن فياض, Qatada قتادة
Grade: Sahih

The Messenger of Allah (ﷺ) as saying: No one withholds goods till their price rises but a sinner. I said to Sa’id (b. al-Musayyab): You withhold goods till their price rises. He said: Ma’mar used to withhold goods till their price rose.
Abu Dawud said: I asked Ahmad (b. Hanbal): What is hoarding (hukrah) ? He replied: That on which people live.
Abu Dawud said: Al-Auza’i said: A muhtakir (one who hoards) is one who withholds supply of goods in the market.

Source: https://parallelquran.com/hadith/sunan-abi-dawud-3447/