NURDIN, R.; RAJAB, H. The Practice of Hajj Substitution in Indonesia: The Search for Legal Certainty through Usul al-Fiqh Approach. Al-Risalah: Forum Kajian Hukum dan Sosial Kemasyarakatan, [S. l.], v. 20, n. 2, p. 217–229, 2020. DOI: 10.30631/alrisalah.v20i2.576. Disponível em: https://shariajournals-uinjambi.ac.id/index.php/al-risalah/article/view/576. Acesso em: 9 jan. 2026.