Here you will find the Poem Ch 08 On Rules For Conduct In Life - Maxim 49 of poet Sa di
An envious man is avaricious with the wealth of God and hates the guiltless as foes. I saw a crackbrained little man, Reviling a possessor of dignity, Who replied: `O fellow, if thou art unlucky, What guilt is there in lucky men?? Forbear to wish evil to an envious man Because the ill-starred fellow is an evil to himself. What needest thou to show enmity to him Who has such a foe on the nape of his neck?