What is the ruling on using the phrase "God's bull in his clover" to indicate a lack of understanding or to indicate that the matter is from God?

Clarifying that everything that occurs in the universe happens by Allah's decree is a legitimate matter, based on His statement, "Indeed, We created all things with a [divine] decree." However, what is common among people regarding this phrase is the intention of the first meaning mentioned in the question, and we have clarified the impermissibility of asserting it.