Ibn al-Najjar said: Ibn al-Shajari was the leading scholar of his age in the science of grammar. He taught Arabic literature all his life; his pupils were many and his years long. He was good-natured and gentle.

He narrated from Abu al-Husayn al-Mubarak ibn al-Tayyuri the book al-Maghazi by Saʿid ibn Yahya al-Umawi.

Those who read to him include Ibn al-Khasshab, Ibn ʿAbdah, al-Taj al-Kindi, and Abu al-Hasan ibn al-Zahidah.

Among those who transmitted from him are ʿAbd al-Malik ibn al-Mubarak the judge, Ahmad ibn Yahya ibn al-Dabiqi, Sulayman ibn Muhammad al-Mosuli, ʿAbd Allah ibn ʿUthman al-Bayyiʿ, and others.

Al-Samʿani said: He served as naqib of the Talibids in al-Karkh on behalf of the sons of al-Tahir. He was one of the foremost imams of the grammarians, fully versed in language and grammar, and the author of several works. He was eloquent, sweet-spoken, and gifted in articulation and explanation. He studied hadith with a number of later scholars such as Abu al-Husayn ibn al-Tayyuri and Abu ʿAli ibn Nabhan, and I wrote down hadiths from him. (1)

Al-Kamal ʿAbd al-Rahman ibn Muhammad al-Anbari (2) said: Our shaykh, Abū al-Saʿadāt, was unique in his era and unmatched in his time in the science of grammar— the most accomplished grammarian we ever encountered, and the last of the skilled masters we met. I learned grammar from him. He possessed complete mastery of the language; he had studied under Abu al-Muʿammar ibn Tabataba, authored works, and dictated a book