Is it permissible to use the phrase "لا حشى" (la hasha) for negation, and what are its origins and meaning?

The word "ḥāshā" (حاشا) or "ḥashā" (حشا) means "exception." Its origin is derived from "al-ḥashā" (الحشا), meaning "side" or "direction." It is said, "They went out ḥāshā Zayd" (خرجوا حاشا زيد), meaning, "I set him aside in a separate direction." From this comes the saying, "I do not place anyone on par with you" (لا أحاشي بك أحدًا), meaning, "I do not place you and him in the same category; rather, I distinguish you from him." The word is often used with an alif between the ḥāʾ and the shīn, and there is no harm in using it.