Abu Sa'd 'Abd al-Karim al-Samani

Ibn al-Samʿānī, full name Abū Saʿd ʿAbd al-Karīm ibn Abī Bakr Muḥammad ibn Abi ʾl-Muẓaffar Manṣūr al-Tamīmī al-Marwazī al-Shafiʿī al-Samʿānī, nicknamed Tāj al-Islām and Qiwām al-Dīn, was an Arab Muslim scholar of biography, history, hadith, Shafi'i jurisprudence and scriptural exegesis. According to Ibn al-Subki, Ibn al-Sam'ani was considered the second greatest hadith scholar of his time after his companion and master, Ibn Asakir.