Chained with Another Man
Scholars have said that seeing oneself chained with another man might indicate committing a major sin that incurs the wrath of the ruler, based on the Quranic verse: "And you will see the criminals that Day bound together in shackles." It was also said that shackles might signify old age and poverty, or even travel because it alters one's gait.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam