The Cambridge History of India, Vol. IV: The Mughul Period v4.c19.38

v4.c19.38

So long as Shāh Jahān lived as a captive in Āgra, Aurangzīb never visited that capital, for his relations with his deposed father were extremely bitter and became the subject of public condemnation throughout India and even outside. The court theologians, particularly ‘Abdul-Wahhāb (who was rewarded with the chief justiceship of the empire), justified his usurpation of a loving father's throne on the ground that the old emperor had grown infirm and intellectually unfit for governing the realm, and, therefore, the protection of the faithful required government by a pious and vigorous man like Aurangzīb. But the rest of the world denounced Aurangzīb's treatment of his father as an outrage on justice and decorum.