Origins of Muhammadan Jurisprudence by Joseph Schacht. Written about 60 years ago, but considered one of the best works in hadith studies: https://ahadithstudies.files.wordpress.com/2010/07/origins-muhammadan-jurisprudence-schacht.pdf (right click, save link as) Advertisements
Introduction to Islamic Theology and Law by Ignaz Goldziher. Written about a 100 years ago, but considered one of the best works in the field of hadith by a Western scholar, PDF: https://ahadithstudies.files.wordpress.com/2010/07/introduction-islamic-theology-law-goldziher.pdf
Welcome to Hadith Studies. This page is dedicated to Orientalist and Traditional Islamic scholarship of hadith (isnad, matn, authenticity, criticism, methodology, historicity, collection, contradictions, politics).