Is it forbidden to engrave a word or a phrase from a song that contains no obscenity—which may have originally been an ordinary poetic verse set to music and sung—and is the money earned from it unlawful?

There is no harm in engraving henna with a word or a phrase from ordinary poetry, vague romantic poetry (ghazal), or poetry of praise and pride. The scholars have stated that there is no harm in listening to poetry, reading it, memor memorizing it, or disseminating it.