Refer to the passage below and then answer the question afterwards in the same language as the passage:

Passage: As he claimed to be able to regulate the flooding of the Nile, he was invited to by Fatimid Caliph al-Hakim in order to realise a hydraulic project at Aswan. However, Ibn al-Haytham was forced to concede the impracticability of his project.

Question: Where was the hydraulic project said to be released?
Aswan