Is the Holy Hadith: "That has not decreased what is with Me except as much as a needle decreases the sea if it is dipped into it," to be understood metaphorically to signify His greatness and power, or is it not to be understood as a metaphor?

The meaning of the noble Hadith, "That does not decrease what is with Me except as much as a needle decreases when it is inserted into the sea," is to affirm the absolute non-diminution of what is with Allah Almighty. Just as inserting a needle into the sea does not diminish its water in any way, similarly, Allah's bestowal upon all His creation does not decrease anything from His dominion. This rhetorical style emphasizes that Allah's treasures are inexhaustible and unaffected by giving, and that what is with Him remains forever undiminished.