Narrated Ma'mar b. Abi Ma'mar, one of the children of 'Adi b. Ka'b: 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: sunnah.com
Other translations
Arabic
حَدَّثَنَا وَهْبُ بْنُ بَقِيَّةَ، أَخْبَرَنَا خَالِدٌ، عَنْ عَمْرِو بْنِ يَحْيَى، عَنْ مُحَمَّدِ بْنِ عَمْرِو بْنِ عَطَاءٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ مَعْمَرِ بْنِ أَبِي مَعْمَرٍ، أَحَدِ بَنِي عَدِيِّ بْنِ كَعْبٍ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ يَحْتَكِرُ إِلاَّ خَاطِئٌ " . فَقُلْتُ لِسَعِيدٍ فَإِنَّكَ تَحْتَكِرُ قَالَ وَمَعْمَرٌ كَانَ يَحْتَكِرُ . قَالَ أَبُو دَاوُدَ وَسَأَلْتُ أَحْمَدَ مَا الْحُكْرَةُ قَالَ مَا فِيهِ عَيْشُ النَّاسِ . قَالَ أَبُو دَاوُدَ قَالَ الأَوْزَاعِيُّ الْمُحْتَكِرُ مَنْ يَعْتَرِضُ السُّوقَ .
sunnah.com