 After his marriage to Siti Rahim, Hamka Muhammadiyah branch was active was the management of Minangkabau, whose origin stemmed from the association Joints bakalnya Safe founded by his father in 1925 in Batang River.In addition, he became the head of Tablighi School, a religious school founded Muhammadiyah on 1 January 1930.Since attending the congress of Muhammadiyah in Solo in 1928, Hamka never missed attending congresses next Muhammadiyah.