Can the Prophet’s (peace and blessings be upon him) statement, “You are more knowledgeable about the affairs of your worldly life,” be used as evidence for the permissibility of separating religion from life?

Question:
May Allah reward you, Honorable Shaykh. The questioner asks: Can the Prophet’s (peace and blessings be upon him) statement, “You are more knowledgeable about the affairs of your worldly life,” be used as evidence for the permissibility of separating religion from life?

Answer:
I seek refuge in Allah. This is deviation. Religion and life are one meaning. Life without religion is life without religion. How can a person live and exist without religion? There is no healthy, happy life except through religion. Therefore, there is no separation between them. “You are more knowledgeable about the affairs of your worldly life” refers to matters of industry, crafts, and experiences; they are more knowledgeable about these. The messengers did not come to teach people carpentry or blacksmithing, nor did they come to teach them the Shari'ah.