I shall not ask anyone after you for anything

While Hakim was generous in his spending for the sake of God, he also still liked to have much. After the battle of Hunayn, he asked the Prophet for some of the booty which the Prophet gave. He then asked for more and the Prophet gave him more.
Hakim was still a newcomer to Islam and the Prophet was more generous to newcomers so as to reconcile their hearts to Islam.
Hakim ended up with a large share of the booty. But the Prophet peace be upon him, told him..

"O Hakim! This wealth is indeed sweet and attractive. Whoever takes it and is satisfied will be blessed by it and whoever takes out of greed will not be blessed. He would be like someone who eats and is not satisfied. The upper hand is better than the lower hand (it is better to give than to receive)."

The kind words of advice had a deep and immediate effect on Hakim. He was mortified and said to the Prophet: "O Messenger of God! By Him who has sent you with the truth, I shall not ask anyone after you for anything."

During the caliphate of Abu Bakr, Hakim was called several times to collect his stipend from the Bayt al-mal but he refused to take any money. He did the same during the caliphate of Umar ibn al-Khattab whereupon Umar addressed the Muslims: "I testify to you, O Muslims, that I have called Hakim to collect his stipend but he refuses."

Hakim remained faithful to his word. He did not take anything from anyone until he passed away. From the Prophet, he had learnt the great truth that contentment is riches beyond compare.