Cut Hand
Scholars have said that whoever sees their hand cut off in a dream, especially if accompanied by acts of righteousness, it may indicate their refraining from forbidden acts and sins. Likewise, if they see their hand or hands bound to their neck without a collar, with something indicating good, such as a mosque or work for the sake of God, it may mean their abstention from sins and wrongdoings.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam