My father رضي الله عنه narrated to us, saying that ʿAlī b. Ibrāhīm b. Hāshim narrated to him among others, from Hārūn b. Muslim, from Masʿada, from Abī ʿAbd Allāh عليه السلام, that the Messenger of Allāh صلى الله عليه وعلى آله has said: “Indeed, Allāh عز وجل has appointed angels as trustees over the supplications of those who fast.” The Prophet has also said: “Jibraʿīl عليه السلام has informed me that my Lord تبارك وتعالى has said: “I have not commanded my angels (as trustees) upon the supplication of anyone of My creations but that such a person will receive an answer (due to the angels’ trusteeship).”