Shaykh ʿAbdul-ʿAzīz Āl Ash-Shaykh, the current Mufti of Saudi Arabia, benefited from the books of Ibn ʿAbdul-Barr, An-Nawawi, and Ibn Hazm so much that he made hajj on their behalf.
The Shaykh singled out Ibn Hazm for his defense of Islam (poem) and his inability to make hajj.