Also written by him was a booklet called Proofs that was published in Arabic in Cairo in 1902. It is believed to be the first book published in Arabic about the Faith although unpublished manuscript written in Arabic were circulated in Russia and the UK prior to this time. [A posting by Rowshan Mustapha 17 February 2024 on the tk list]

L'implantation de la foi baha'ie en France et impact de la venue de Abdu'l Baha à Paris au début du XXème siècle Mémoire D.E.S. de Natalia Behnam includes him among the first Bahá'ís in France. iiiii

Àbdu'l-Bahá is reported to have said of him:

His value will be known in the future. He enkindled for you a lamp which shall never be extinguished. He laid for you a foundation which shall not be destroyed throughout centuries and cycles. He planted for you a tree whose root is firm in the ground, whose branches have ascended to heaven and its fruits are shared by all throughout all the seasons. Mr De Sacy was in reality a divine man. In Syria there was no one like him. He was like a torch. He was the essence of sanctity. Whenever a person looked into his face, if he was unhappy, he wold be made happy. [ABF355-356]