al-Marwazi, Ahmad ibn Ali. Musnad Abi Bakr al-Siddiq / tasnif Abi Bakr Ahmad ibn'Ali ibn Sa'id al-Amawi al-Marwazi. - Beirut : al-Maktabah al-Islami, 1970. - 231 p. ; 24 cm. Subjects--Personal Names: Abu Bakr, Caliph, d.634.