If you know that a man is pious, is it permissible for me to say: (O Allah, I ask You by so-and-so)?

Question:
He says: Honorable Shaykh, may Allah grant you success, if I know that a man is pious and scrupulous, is it permissible for me to say: O Allah, I ask You by so-and-so to help us?

Answer:
No, it is not permissible to seek nearness to Allah through a created being. This is something you have studied regarding tawassul (seeking nearness to Allah through a means) and the means of approach. Seeking nearness to Allah through a created being is not permissible. Yes, rather, seeking nearness to Allah through righteous deeds or through the names and attributes of Allah is what is prescribed.