Shaykh Sulayman bin Abdullaah bin Abdul-Wahhaab
Shaykh Sulayman bin Abdullaah bin Abdul-Wahhaab on What Constitutes the Magic Which Expels from Islaam: http://www.dajjaal.com/liar/articles/hbvnw-shaykh-sulayman-bin-abdullaah-bin-abdul-wahhaab-on-what-constitutes-the-magic-whic-expels-from-islaam.cfm
Imaam al-Shanqeetee
Imaam al-Shanqeetee’s Clarification and Verification on the Magic that Expels From the Religion: http://www.dajjaal.com/liar/articles/ltfwe-imaam-al-shanqeetees-clarificatioon-and-verification-on-the-magic-that-expels-from-the-religion.cfm
Shaykh Ibn Baz
Shaykh Ibn Baz; That Which Makes Magic to Be Kufr is Worship of the Jinn and Seeking their Assistance:
http://www.dajjaal.com/liar/articles/ebgpf-shaykh-ibn-baz-that-which-makes-magic-to-be-kufr-is-worship-of-the-jinn-and-seeking-their-assistance.cfm
Shaykh Ibn Baz on the Tafseel (Detailed Clarification) Regarding Magic Which Constitutes Kufr:
http://www.dajjaal.com/liar/articles/ovgju-shaykh-ibn-baz-on-the-tafseel-detailed-clarification-regarding-magic-which-constitutes-kufr.cfm
Shaykh Ibn al-Uthaymeen
Shaykh Ibn al-Uthaymeen on the Magic that Expels from Islam and the Magic Which Does Not: http://www.dajjaal.com/liar/articles/gwwua-shaykh-ibn-al-uthaymeen-on-the-magic-that-expels-from-islam-and-the-magic-which-does-not.cfm
Shaykh Saalih Aal al-Shaykh
Shaykh Saalih Aal al-Shaykh on the Nature of the Magic Which Expels from Islaam:
http://www.dajjaal.com/liar/articles/crdpu-shaykh-saalih-aal-al-shaykh-on-the-magic-which-expels-from-islaam.cfm