If he wants to offer the five daily prayers in Paradise
There is no difference of opinion among the scholars that Paradise is not a place of obligations, rather it is the place of reward, so there will be no obligation to pray there at all.
If a person wants to offer the five daily prayers or other prayers in Paradise, will he be able to do that? The answer is that this is a matter of the unseen which needs evidence to be proven, and we could not find anything to prove that. Ibn al-Qayyim (may Allaah have mercy on him) said that acts of worship will be waived in Paradise and there will be nothing left but worship by saying tasbeeh and dhikr (remembering Allaah).
He (may Allaah have mercy on him) said: Chapter on the waiving of worship in Paradise except worship by saying dhikr which will be ongoing. Muslim narrated in his Saheeh from Jaabir ibn ‘Abd-Allaah (may Allaah be pleased with him) that the Prophet (peace and blessings of Allaah be upon him) said: “The people of Paradise will eat and drink therein, but they will not blow their noses or defecate or urinate. Their food there will turn into burps and sweat like musk. They will be caused to recite tasbeeh and praise, as they are caused to breathe.” According to another report: “tasbeeh and praise as you are caused to breathe i.e., their tasbeeh and praise will be (second nature) like breathing. End quote from Haadi al-Arwaah, p. 285.
What matters is that one should strive to attain the things whereby Allaah will draw him close to Him and admit him to Paradise.
And Allaah knows best.