Hadith
أَخْبَرَنَا عَبْدُ الْجَبَّارِ بْنُ الْعَلاَءِ بْنِ عَبْدِ الْجَبَّارِ، عَنْ سُفْيَانَ، عَنِ الزُّهْرِيِّ، قَالَ أَخْبَرَنِي عُرْوَةُ، عَنْ حَكِيمِ بْنِ حِزَامٍ، قَالَ سَأَلْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم فَأَعْطَانِي ثُمَّ سَأَلْتُهُ فَأَعْطَانِي ثُمَّ سَأَلْتُهُ فَأَعْطَانِي فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " يَا حَكِيمُ إِنَّ هَذَا الْمَالَ خَضِرَةٌ حُلْوَةٌ فَمَنْ أَخَذَهُ بِطِيبِ نَفْسٍ بُورِكَ لَهُ فِيهِ وَمَنْ أَخَذَهُ بِإِشْرَافِ نَفْسٍ لَمْ يُبَارَكْ لَهُ فِيهِ وَكَانَ كَالَّذِي يَأْكُلُ وَلاَ يَشْبَعُ وَالْيَدُ الْعُلْيَا خَيْرٌ مِنَ الْيَدِ السُّفْلَى " .
It was narrated that Kakim bin Hizam said:"I asked the Messenger of Allah and he gave me, then I asked him and he gave me, then I asked him and he gave me. Then he said: This wealth is attractive and sweet. Whoever takes it without insisting, it will be blessed for him, and whoever takes it with avarice, it will not be blessed for him. He is like one who eats and is not satisfied. And the upper hand is better than the lower hand
Sahih · Abu Ghuddah
Sunan an-Nasa'i 2601 ·Book 23, Hadith 167·Also available on sunnah.com·