Question

what does Morocco have to swear before he make his hazard

Answer 1

1: he wouldn't disclose which casket he chose and what it contained.
2:he wouldn't ask any lady in purpose of marriage
3: he would leave the without a word

Answer 2

Morocco is a character from the great novel merchant of Venice written by Shakespeare where he had sworn that he is never going to ask any women to marry him or even keep a proposal for it,he would never even disclose the casket he choose and what remained and contained it in.