Does he mean Jabarti as in darood?I can't read the whole account of al-maqrisi to know everything he said about bale but here is a quick description of the kingdom.
The kingdom of bale's length is 20 day and it's width is 6 days and it's the most fertile land of bilad a-zayla' "also called adal or jabarti" and they trade using bartering, sheeps for cows and cows for clothes and such things and it's people follow the hanafi madhab.