According to the unanimous consensus of Islamic scholarship, the act of 'divination'—attempting to know the future or the unseen—is absolutely forbidden (Haram) in Islam and is considered one of the most severe sins. This prohibition covers all methods, including astrology, palmistry, tarot cards, and soothsaying. The core theological reason for this prohibition is the foundational Islamic principle of *Al-Ghayb* (the Unseen), which posits that knowledge of the future is an attribute belonging exclusively to Allah. As the Quran states in Surah An-Naml (27:65), "Say, 'None in the heavens and earth knows the unseen except Allah.'" Therefore, any attempt by humans to claim or seek this knowledge is a direct challenge to divine sovereignty and constitutes *Shirk* (associating partners with Allah), the only unforgivable sin if one dies without repenting from it. Prophetic traditions (Hadith) further detail the severe consequences, stating that one who visits a fortune-teller and believes them has disbelieved in what was revealed to Prophet Muhammad (ﷺ), and even approaching one out of curiosity results in one's prayers not being accepted for forty days.