Ajlan ibn Thabit's Sack of Medina

"Shadharat al-Dhahab" reports that in 829 AH Ajlan ibn Thabit, the governor of Medina, sacked the city when he learned that he had been removed in favour of his cousin Hasan ibn Jammaz. ¹

Ajlan tore down and burned most of the houses of Medina. The "Shadharat" says that he spared the houses of those whom it calls the Rafida, and he appointed as judge a man of that persuasion called al-Siqal. This description is the source's own wording. ¹

Of the office-holders, only the Shafi'i judge was spared, because he sought refuge with a relative of Ajlan called Mani', who granted him protection. ¹

The Gregorian date is derived, and it needs an additional source.