The title of this study is the comparison of methodology was used by Imam Ibnu
Hajar Al-asqalani and Imam Al-zahabi in a1:jarah wal-taadil. The objectives of the
topic are to know their method in hadith. Besides to know structure and law was used
in al-jarah wal-taadil. This research explains about the definition of al-jarah waltaadil
itself both literal ( lughah) and technical ( istilah). This research used the
library research and gets the source from books. through the reading and observation
from the related sources, regarding this research. Result from this study, to make it
easier scholarly hadith for distinguish prestige hadith to regarding authority hadith and
using as an evidence regarding priority.