Hakeem bin Hizam reported,

Hakeem said, "I asked the Messenger of Allah ﷺ and he gave to me. Then I asked him again and he gave to me. Then I asked him a third time and he gave to me. Then he said, 'Hakeem, this wealth is sweet and green. Whoever takes it with a generous heart will be blessed in it, but whoever takes it with a greedy soul will not be blessed in it, and he will be like one who eats but is never satisfied. The upper hand is better than the lower hand.'"Hakeem continued, "I said, 'Messenger of Allah, by the One who sent you with the truth, I will never take anything from anyone after you until I depart this world.'"Abu Bakr used to summon Hakeem to give him his stipend, but he would refuse to accept it. Then Umar called him to give him his share, and again he refused to accept anything from him. Umar then declared, "I call you to witness, assembly of Muslims, against Hakeem, that I am offering him his rightful share from this spoils of war and he refuses to take it."Hakeem never took anything from anyone after the Messenger of Allah ﷺ until he died.He said, this is an authentic hadith.

حدثنا سويد أخبرنا عبد الله عن يونس عن الزهري عن عروة وابن المسيب أن

حكيم بن حزام قال

سألت رسول الله ﷺ فأعطاني ثم سألته فأعطاني ثم سألته فأعطاني ثم قال يا حكيم إن هذا المال خضرة حلوة فمن أخذه بسخاوة نفس بورك له فيه ومن أخذه بإشراف نفس لم يبارك له فيه وكان كالذي يأكل ولا يشبع واليد العليا خير من اليد السفلى فقال حكيم فقلت يا رسول الله والذي بعثك بالحق لا أرزأ أحدا بعدك شيئا حتى أفارق الدنيا فكان أبو بكر يدعو حكيما إلى العطاء فيأبى أن يقبله ثم إن عمر دعاه ليعطيه فأبى أن يقبل منه شيئا فقال عمر إني أشهدكم يا معشر المسلمين على حكيم أني أعرض عليه حقه من هذا الفيء فيأب أن يأخذه فلم يرزأ حكيم أحدا من الناس شيئا بعد رسول الله ﷺ حتى توفي قال هذا حديث صحيح