Allah, Exalted is He, conferred His grace, mercy, and generosity on His servants, and promised Paradise to those who embrace Islam, sincerely believe in and obey Him. It is odd that there should be people who reject Islam at first yet may be compelled (by circumstances) to embrace it, and afterwards become good and sincere Muslims, earn the pleasure of Allah, Exalted is He, and enter Paradise! In this hadeeth, the Prophet ﷺ stated that Allah, Exalted is He, wonders at those people who will enter Paradise in chains! This means that such people would be taken prisoners by Muslims and chained. After being edified on Islam and learning that it is the true religion of Allah, Exalted is He, they would willingly embrace Islam, and thus would be admitted to Paradise. It was also said that they may be compelled (by circumstances) to embrace Islam and this would be the reason for their entering Paradise. Another possible meaning is that the hadeeth refers to the Muslims taken prisoner by the disbelievers who died in such a state or got killed by them and were resurrected in such a state. He ﷺ referred to their resurrection (in the very state in which they died) with the reference to entering Paradise because it is authentically reported that they shall enter it after their resurrection. The hadeeth affirms the divine attribute of ‘wondering’ with respect to Allah, Exalted is He, in a manner that befits Him. We are enjoined to affirm such divine attributes exactly as the Prophet ﷺ affirmed them, without Tahreef (i.e., distortion), Takyeef (i.e., trying to describe "how" an Attribute is, e.g., to say: How is Allah's Face?), Tashbeeh and Tamtheel (i.e., likening Allah to His creation), or Ta‘teel (i.e., denial)..