From Sa'eed bin Al-Musayyab, from Ma'mar bin 'Abdullah bin Nadlah who said: "I heard the Messenger of Allah ﷺ saying: 'Hoarding is nothing but sin.' So I (Muhammad) said to Sa'eed: "O Abu Muhammad! You hoard?" He said: "And Ma'mar would hoard." It is also been reported that Sa'eed bin Musayyab would hoard oil, (camel) fodder, and the like.  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ لاَ يَحْتَكِرُ إِلاَّ خَاطِئٌ فَقُلْتُ لِسَعِيدٍ يَا أَبَا مُحَمَّدٍ إِنَّكَ تَحْتَكِرُ قَالَ وَمَعْمَرٌ قَدْ كَانَ يَحْتَكِرُ