Muhammad ibn Abu Bakr (also known as Ibn Qayyim or Ibn Qayyim al-Jawziyyah (1292–1350 CE / 691 AH–751 AH) was an Arab Sunni Islamic jurist, commentator on the Qur'an and theologian. Although he is sometimes referred to as "the scholar of the heart", Ibn Qayyim's scholarship was focused on the sciences of Hadith and Fiqh.