“Ask not for whom the bell tolls” is a popular cliche. My understanding is that it comes from John Donne’s Meditation XVII (1623). But in Donne’s poem, the line is
any man’s death diminishes me, because I am involved in mankind, and therefore never send to know for whom the bell tolls; it tolls for thee.
So where did “ask not” come from? Is it a common mistake (or deliberate modernization) or is there another source for this quote?