Usul Fiqh is the science that studies the basics of making a law jurisprudence, while the Fiqh is the science for understanding of the laws masalaha religion, ni application consists of

- Book Mabadi Awwaliyah (the work of Shaykh Abdul Hamid Hakim)
- Book Asybah Wan Nadzhoir (by Imam Jalaluddin Abdul-Rahman ibn Abi Bakr As-Suyuti)
- Book Safinatun Najaah (works of Shaikh Salim bin Samir Al-Hadrami)

Hopefully this application is useful for the readers and the prosecution of science