Link 2 from the end of the chain
Narrated `Urwa bin Az-Zubair: Hakim bin Hizam said, "I asked Allah's Messenger (ﷺ) for something, and he gave me, and I asked him again and he gave me and said, 'O Hakim! This wealth is green and sweet (i.e. as tempting as fruits), and whoever takes it without greed then he is blessed in it, and whoever takes it with greediness, he is not blessed in it and he is like one who eats and never gets satisfied. The upper (i.e. giving) hand is better than the lower (i.e. taking) hand." Hakim added, "I said, O Allah's Messenger (ﷺ)! By Him Who has sent you with the Truth I will never demand anything from anybody after you till I die." Afterwards Abu Bakr used to call Hakim to give him something but he refused to accept anything from him. Then `Umar called him to give him (something) but he refused. Then `Umar said, "O Muslims! I offered to him (i.e. Hakim) his share which Allah has ordained for him from this booty and he refuses to take it." Thus Hakim did not ask anybody for anything after the Prophet, till he died--may Allah bestow His mercy upon him.
Link 2 from the end of the chain
Narrated `Urwa bin Az-Zubair: Hakim bin Hizam said, "I asked Allah's Messenger (ﷺ) 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 (ﷺ)! 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 (ﷺ) till he died.
