تحفة النظار في غرايب الامصار وعجايب الاسفار 11.16.3

11.16.3

the sultan's son said to his servants: "When the shaykh is in the state that overcomes him, let me know." When the state took hold of him they informed him, and he went in to him. When the shaykh saw him, he said: "We have granted you the kingdom." Then the shaykh died during the sultan's absence, and his son Muḥammad carried his bier on his shoulder. This reached his father, who disapproved of it and threatened him. Certain things about him had already aroused his suspicion, and he resented his buying so many mamlūks, his lavish gifts and his winning over people's hearts, so his anger against him grew. He also heard that the astrologers claimed he would not enter the city of Dihlī after that expedition, and he threatened them! When he returned from his expedition and drew near the capital, he ordered his son to build him a palace — they call it a kushk, with ḍamma on the kāf and a dotted shīn with sukūn — beside a stream there called Afghānpūr. He built it in three days, making most of it of wood, raised above the ground on wooden pillars, and constructed it with an engineering design supervised by the Malik Zāda, known afterwards as Khwāja Jahān, whose name was Aḥmad b. Iyās, the chief vizier of Sultan Muḥammad, who was then superintendent of buildings. The device they had contrived in it was that whenever elephants trod on one side of it, the palace would collapse and fall.