Muhammad Amrullah Tuanku Muhammad Abdullah Saleh (1840 in West Sumatra – 1909 in West Sumatra) also known as Tuanku Kisai, was a great scholar of Minangkabau and an ancestor of two major figures in the Malay world. One man is his own son, Abdul Karim Amrullah, and another is his grandson, Hamka. His grandfather was Tuanku Nan Tuo, one of the prime movers of the Padri in West Sumatra.
Muhammad Amrullah one of his followers Naqshbandi. Amrullah listed as one of Kaum Tua movement. His child, Abdul Karim Amrullah, was a pioneer and major figure in the struggle, including Kaum Muda. Abdul Karim Amrullah reject the Naqshbandi deeds, while rejecting the bond 'taqlid', and more likely inclined to the thought of Muhammad Abduh. Amrullah have eight times the marriage, and the number of all the children are 46 people.