What is your guidance regarding the poet's saying, "So I am the slain of love by my full will / The Book has been raised and the pens have dried," and his justification for the second hemistich that it is due to poetic necessity and akin to narrating Hadith by meaning, and that the Book which recorded destinies has been raised and preserved, and the pens have dried?

The meaning intended by the speaker from "The pens have been lifted and the ink has dried on the scrolls" is correct and consistent with the prophetic hadiths that affirm that destinies have been written and the pens have dried concerning what is to be. This phrase has been narrated with different wordings such as "The decree has been decided, the pens have dried, and the scrolls have been folded" and "The writing has been lifted and the pen has dried," all of which indicate the pre-writing of destinies and their completion from a long time ago.

As for quoting religious texts (from the Quran and Sunnah) and incorporating them into poetry and prose, it is permissible according to the majority of scholars if it serves good purposes that align with religious objectives. This quoting becomes impermissible and prohibited if used in corrupt speech, or if the words of Allah are attributed to the speaker himself, or if verses from the Holy Quran are used in humorous contexts or in ways that diminish their sanctity.

What the poet did is impermissible because he dishonored religious texts by placing them in an inappropriate context, and the meaning he mentioned is flawed and inconsistent with the expression "The pens have been lifted and the ink has dried on the scrolls."