Mansur Al Hallaj And Other Sufis
Sufis believe in pantheism Wahdatul Wujud). This is an old philosophical mystic concept found in the old Greek philosophers and Hindus, it traveled into Muslims in the later centuries when non-Arab peoples embraced Islam. The Quran outrightly rejects it. The Christians believe in three godheads and mean them one. God did not accept their philosophy and called it Kufr and Shirk. Pantheism is the same. It maintains that the whole universe is the manifestation of God. It is Kufr and Shirk and the philosophy is not acceptable. My essay on this topic might help you. Find it here https://alsharia.org/2024/aug/tasawwuf-aik-mutawazi-deen-dr-irfan-shehzad