What is the reprisal in the sight of Allah for hoarding wealth or being tight-fisted?

Some people hoard up their wealth and money throughout their entire life and do not use it for good causes as defined in the Qur’an. With insatiable greed, they persistently try to possess more and more wealth. As for what they gain, they do not spend it in the way of Allah, or to feed those in need, but just to enjoy themselves. They hoard up much more than they will ever need and do not use it for good deeds apart from some small expenditures which serves as a means to show off. These people will have a terrible reprisal in the Hereafter, which is related in the Surat at-Tawba as follows:

… As for those who hoard up gold and silver and do not spend it in the Way of Allah, give them the news of a painful punishment on the Day it is heated up in the fire of Hell and their foreheads, sides and backs are branded with it [when it will be said]: “This is what you hoarded for yourselves, so taste what you were hoarding!” (Surat at-Tawba, 34-35)

Those who hoard their wealth and are parsimonious are in fact those who are greedily attached to this world with what they possess and who cannot grasp that Allah has given them wealth and assets to try them in this world. Yet Allah is the One Who is rich beyond need, and is the true owner of all wealth. It is man who needs a reward from Allah by spending in His way. This fact is related in a Qur’anic verse as follows:

Here you are then: people who are called upon to spend in the Way of Allah and then some of you are tight-fisted! But whoever is tight-fisted is only tight-fisted to himself. Allah is Rich and you are poor. If you turn away, He will replace you with a people other than yourselves and they will not be like you. (Surah Muhammad, 38)

What is the reprisal in the sight of Allah for hoarding wealth or being tight-fisted?