The Four Mathhabs
The two conditions of 'Ibadah
Shaykh ul-Islam Ibn Taymiyyah
Is it permissible to exercise Ijtihad in something which is Ma'lum minad-din biddarurah?
Shaykh 'Abdul-'Azeez bin Baaz
Dealing with Differences of Opinion
Shaykh Saalih al-Fawzaan