Abu Abdallah Mohammed al-Hajj ibn Mohammed ibn Mohammed ibn Abd-al-Rahman ibn Abu Bakr al-Dilai, also known as Al-Murabit, was a renowned linguist and scholar of Arabic grammar and usul-al-fiqh (law). He was the grandson of the founder of the zaouia of Dila, Abu Bakr ibn Mohammed al-Majati as-Sanhaji (1526-1612) and brother of Mohammed al-Hajj, who proclaimed himself Sultan of Fez in 1659. Al-Dila'i wrote (a.o.) treatises on law, poems in praise of Muhammad. And an urdjuza about the Shurafa, Durrat al-tidjan. Al-Dila'i performed the Hajj, along with his father, in 1659 and wrote his Rihla in the form of a poem of 136 lines, entitled Al-Rihla al-Mujaddasa. He was the teacher of Abu Ali al-Hassan al-Yusi (1631–1691).