Sahih al-Bukhari, Volume 4, Book 53, Hadith 371 (USC-MSA) ⓘ

Narrated `Urwa bin Az-Zubair: Hakim bin Hizam said, "I asked Allah's Messenger for something, and he gave me. I asked him again, and he gave me, and said to me. 'O Hakim! This wealth is like green sweet (i.e. fruit), and if one takes it without greed, then one is blessed in it, and if one takes it with greediness, then one is not blessed in it, and will be like the one who eats without satisfaction. And an upper (i.e. giving) hand is better than a lower (i.e. taking) hand,' I said, 'O Allah's Messenger! By Him Who has sent you with the Truth. I will not ask anyone for anything after you till I leave this world." So, when Abu Bakr during his Caliphate, called Hakim to give him (some money), Hakim refused to accept anything from him. Once `Umar called him (during his Caliphate) in order to give him something, but Hakim refused to accept it, whereupon `Umar said, "O Muslims! I give him (i.e. Hakim) his right which Allah has assigned to him) from this Fai '(booty), but he refuses to take it." So Hakim never took anything from anybody after the Prophet till he died.

حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ، حَدَّثَنَا الأَوْزَاعِيُّ، عَنِ الزُّهْرِيِّ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، وَعُرْوَةَ بْنِ الزُّبَيْرِ، أَنَّ حَكِيمَ بْنَ حِزَامٍ ـ رضى الله عنه ـ قَالَ سَأَلْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم فَأَعْطَانِي، ثُمَّ سَأَلْتُهُ فَأَعْطَانِي، ثُمَّ قَالَ لِي ‏ "‏ يَا حَكِيمُ، إِنَّ هَذَا الْمَالَ خَضِرٌ حُلْوٌ، فَمَنْ أَخَذَهُ بِسَخَاوَةِ نَفْسٍ بُورِكَ لَهُ فِيهِ، وَمَنْ أَخَذَهُ بِإِشْرَافِ نَفْسٍ لَمْ يُبَارَكْ لَهُ فِيهِ، وَكَانَ كَالَّذِي يَأْكُلُ وَلاَ يَشْبَعُ، وَالْيَدُ الْعُلْيَا خَيْرٌ مِنَ الْيَدِ السُّفْلَى ‏" ‏‏.‏ قَالَ حَكِيمٌ فَقُلْتُ يَا رَسُولَ اللَّهِ، وَالَّذِي بَعَثَكَ بِالْحَقِّ لاَ أَرْزَأُ أَحَدًا بَعْدَكَ شَيْئًا حَتَّى أُفَارِقَ الدُّنْيَا‏.‏ فَكَانَ أَبُو بَكْرٍ يَدْعُو حَكِيمًا لِيُعْطِيَهُ الْعَطَاءَ، فَيَأْبَى أَنْ يَقْبَلَ مِنْهُ شَيْئًا، ثُمَّ إِنَّ عُمَرَ دَعَاهُ لِيُعْطِيَهُ فَأَبَى أَنْ يَقْبَلَ فَقَالَ يَا مَعْشَرَ الْمُسْلِمِينَ، إِنِّي أَعْرِضُ عَلَيْهِ حَقَّهُ الَّذِي قَسَمَ اللَّهُ لَهُ مِنْ هَذَا الْفَىْءِ، فَيَأْبَى أَنْ يَأْخُذَهُ‏.‏ فَلَمْ يَرْزَأْ حَكِيمٌ أَحَدًا مِنَ النَّاسِ بَعْدَ النَّبِيِّ صلى الله عليه وسلم حَتَّى تُوُفِّيَ‏.‏