تحفة النظار في غرايب الامصار وعجايب الاسفار 11.6.1

11.6.1

His name is spelled with two single-dotted bāʾs with a lām between them, all with fatḥa, and ending in nūn. When Balban killed his master Sultan Nāṣir al-Dīn, he ruled alone after him for twenty years, having before that been his deputy for another twenty years. He was one of the best of sultans, just, forbearing