Ibn Khallikan
Hasan was a son of Ubayd Allah ibn Tughj, and hence member of a cadet branch of the main Ikhshidid dynasty, founded by Ubayd Allah's brother Muhammad ibn Tughj al-Ikhshid. According to the historian al-Farghani, relayed by Ibn Khallikan, he was born in 924/5. The famed poet al-Mutanabbi, during his sojourn in Egypt, dedicated a long "qasida" poem to Hasan.