Seeing a belt in your dream is generally considered a symbol of your son. If the belt breaks, it may signify the death of your son. On the other hand, wearing a belt in a dream represents dedication, self-restraint, and spiritual detachment. This dream can help you become more aware of your relationships in life and your spiritual condition.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Cincture" (page 82).
The priest's cincture in a dream represents a son. A broken cincture in the dream means the death of one's son. Wearing a cincture in a dream is also a sign of devotion, abstinence, ascetic detachment and a sign of obedience for Christians. As for a Muslim person, wearing a cincture in a dream is a sign of faith, certitude and determination, fulfilling God's commands, goodwill or opposing fallacies. A cincture in a dream also means adultery, fornication or being a middle aged person. Whatever good or bad that may happen to one's cincture in a dream will reflect in his life. Ifone wears a new cincture over his gown in a dream, it means begetting a son. If one wears his cincture under his gown in the dream, it means fallaciousness, dissent, heinous corruption in one's spiritual life and evil in his worldly aspirations. (Also see Belt; Waistband; Waist belt)
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.
