Teungku Haji Muhammad Hasan Krueng Kale (Abu Krueng Kale) was born on 13 Rajab 1303 AH (18 April 1886) at Langgoe, Sangeue, Pidie, while his family was displaced by the Aceh War. He studied with his parents and at Dayah Keubok, then about five years at Yan, Kedah, under Teungku Chik di Yan (Muhammad Arsyad Ie Leubeu), and about seven years in Mecca in exegesis, jurisprudence, Sufism and astronomy. Returning to Aceh in 1916, he built Dayah Krueng Kale at Siem, Darussalam, Aceh Besar, which at its peak had over a thousand students and trained scholars such as Abuya Muda Waly and Abu Tumin. He co-signed the Declaration of the Ulama of All Aceh (15 October 1945) supporting the Proclamation, led PERTI in Aceh until 1968 and then its consultative council, and sat in the Constituent Assembly (1955). He died on 19 January 1973 at Krueng Kale.