Praise be to Allah, and may peace and blessings be upon the Messenger of Allah. To proceed:
It is authentically established that the Prophet ﷺ said:
“The feet of a servant will not move on the Day of Resurrection until he is asked about his life and how he spent it, about his knowledge and what he did with it, about his wealth—where he acquired it and on what he spent it—and about his body and how he used it.”
Narrated by al-Tirmidhi, who said: “A hasan sahih hadith.”
The apparent meaning of the hadith is that the servant remains in the place of reckoning until he is questioned about these matters. It does not indicate that some of these questions take place before the Sirat and others after it.
As for what is mentioned in an authentic hadith that people of wealth will be detained, al-Hafiz Ibn Hajar mentioned that this may be due to the reckoning concerning their wealth. This detention could take place at the Qantarah after crossing the Sirat, where the rights of those who were wronged are settled by taking from the good deeds of those who wronged them before they enter Paradise.
Accordingly, there are two possible ways of reconciling the texts:
First: The questioning about all four matters takes place in the general place of reckoning, as is apparent from the hadith of Abu Barzah, and the questioning about wealth is not necessarily assigned to a different time.
Second: There may be a general questioning about wealth as part of the reckoning, followed by a special detention or reckoning for people of wealth after the Sirat at the Qantarah, because of matters relating to people's rights and financial liabilities.
The scholars have also mentioned that the hadith of Abu Barzah does not necessarily apply to every person in every category. A person who had no knowledge is not questioned about knowledge he did not possess, and a person who had no wealth is not questioned about wealth he did not own. As for one's life and body, the questioning concerning them is more general.
Therefore, it is not correct to state with certainty that the questioning about one's life, knowledge, and body takes place before the Sirat, while the questioning about wealth takes place afterward. This is merely one possible way of reconciling the texts, and there is no explicit text establishing it definitively.
In conclusion, what is established is that a person will be questioned about his life, knowledge, wealth, and body. As for determining the exact place of each question in relation to the Sirat and the Qantarah, no conclusive detailed evidence has been authentically established. It is possible that the questioning about wealth occurs in two stages: a general question during the reckoning, followed by a special detention or reckoning for people of wealth after the Sirat.
And Allah knows best.