Then the year 401 AH began. (1)
On Friday, the fourth of Muḥarram of that year, the Friday sermon in Mosul was delivered in the name of al-Ḥākim the ʿUbaydī, by order of the city’s ruler, Qirwāsh ibn Muqallad Abū Manīʿ. (2) He compelled his subjects to comply.
Ibn al-Jawzī (3) reproduced the text of that sermon verbatim. At its close it read: “Invoke blessings upon his forefathers from among the caliphs—al-Mahdī, then his son al-Qāʾim, then his son al-Manṣūr, then his son al-Muʿizz, then his son al-ʿAzīz—and upon his son, the present ruler al-Ḥākim. Implore abundant prayers for them, especially for the aforesaid al-Ḥākim.” The same was done in the rest of Qirwāsh’s territories, such as al-Anbār, al-Madāʾin, and elsewhere. (4)
The reason for this was that al-Ḥākim had repeatedly sent letters, envoys, and gifts to Qirwāsh, courting his allegiance until the latter carried out what we have mentioned [the sermon and other matters]. When news of this reached the ʿAbbāsid caliph al-Qādir [biʾllāh] (5), he wrote reproaching Qirwāsh ibn Muqallad for his conduct and dispatched Bahāʾ al-Dawlah to the ʿAmīd al-Juyūsh with one hundred thousand dinars to wage war against Qirwāsh. On learning of this, Qirwāsh abandoned his position, regretted what he had done, ordered the khutbah for al-Ḥākim to be discontinued throughout his lands, and restored it to the ʿAbbāsid caliph al-Qādir as before.
Ibn al-Jawzī (6) said: “With five days remaining in Rajab, the Tigris rose greatly; the increase continued until Ramadan, reaching twenty-one and one-third cubits, and water entered most of the houses of Baghdad.”
In the same year, the vizier Abū Ghālib ibn Khalaf returned to Baghdad, and Fakhr al-Mulk received the title ʿAmīd al-Juyūsh.