بسم الله الرحمن الرحيم
(Fatwa: 711/711/M=1434) In order to know the detail of Shirk and Kufr study the following books: (1) Sunant wa Bidat: Mufti Abdur Raheem Lajpuri (رحمة الله). (2) Al-Shihab Al-Saqib: Hadhrat Madani (رحمة الله) (3) Rah-e-Sunnat: Maulana Sarfaraz Khan Safdar Sahib (رحمة الله) (4) Muhazrat Radd Raza Khaniyat: Published by Darul Uloom Deoband (5) Islahur Rusum: Hadhrat Thanavi (رحمة الله) (6) Shariyat ya Jihalat: Maulana Palan Haqqani (رحمة الله)
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband