The author of ar-Risala
Abu Muhammad 'Abdullah ibn Abi Zayd was one of the people North Africa. Abu Zayd's name was 'Abdu'r-Rahman according to Ibn Makula and Qadi Ibn alHadhdha'. He was from the tribe of Nifza and lived in Qayrawan.
His position in knowledge
He was the Imam of the Malikis in his time and their model. He had a comprehensive grasp of the school of Malik and explained his statements. He had extensive knowledge and a prodiguous memory and transmission. His books are ample testimony of that. His writing was fluent, clarifying and defining what he said. He defended the school of Malik and established evidence in its support. He knew how to refute the people of sects. In addition to his writing, he was very righteous, scrupulousness and chastity. He obtained leadership in the deen and this world. and people from all regions travelled to visit him. His companions were noble and many people took knowledge from him. He composed a summary of the school and undertook to spread it and defend it. His books filled the lands and were well-known to most of its people.