Arbain Nawawi or Al-Arba'in An-Nawawiyah is a book that contains forty-two selected hadith compiled by Imam Nawawi. The Arba'in Hadith application is equipped with the following features:
- Audio Hadith
- Hadith text
- Hadith translation
- History or Traditions of Hadith
- and Syarah or Hadith Explanation

The hadith syarah used in this application is the syarah of Imam Ibn Daqiq al-Ied, a great scholar in the 13th century.