They invested him with the sovereignty of Aleppo after his father, when he was only four years old, and appointed the eunuch officer Ṭughril as his atabeg. Sultan al-Malik al-ʿĀdil endorsed this arrangement because of his daughter, the noble Lady Dāyfa, Umm al-ʿAzīz. He matured into a just young man, compassionate toward his subjects, gracious, and generally of good conduct.

He died in Rabīʿ al-Awwal of the year 634 AH, after which they installed al-Nāṣir’s daughter in his place.

In that same year his uncle died in Aleppo:

122 – al-Malik al-Muḥsin, Abū al-ʿAbbās Aḥmad ibn Yūsuf ibn Ayyūb*
A hadith scholar, ascetic, and learned man, Yamin al-Dīn, Abū al-ʿAbbās Aḥmad, son of Sultan Yūsuf ibn Ayyūb.

He transmitted hadith from Ibn Ṣadaqa al-Ḥarrānī, Wahbat Allah al-Būṣīrī, Hanbal, and many others.

He copied manuscripts, read widely, and acquired abundant knowledge. His transmissions were reliable; he was humble, showed preference to the people of hadith and the narrators, and the hadith scholars regarded him as an ornament among them. He traveled in search of knowledge and heard hadith in Mecca from