Muhammad ibn Yusuf al‐Sanusi

Muhammad ibn Yusuf al-Sanusi was a Maghribi Sunni polymath from what is now Algeria. He was an Ash'arī theologian, Mālikī jurist, Sufi saint and mufti centred in Tlemcen. He is best known for his foundational contributions to Islamic creed ('aqīdah) and theology (kalām), with his works being highly regarded in Sunni Islam, particularly within the Ash'ari tradition. Imam Muhammad ibn Yusuf al-Sanusi is widely credited with systematizing and popularizing an accessible, rationally argued presentation of Sunni kalām, thereby safeguarding orthodox creed against heterodox influences and countering the claims of pseudo-Sufi figures who promoted innovations and spurious forms of asceticism.