Which statement correctly explains the aspect “Wishing for the unlikely possible” in the example “لَيْتَ لِي مَالًا فَأَتَصَدَّقَ”?

Inshāʾ and Tamannī: Requests, Wishing, Exhortation, and Reproach

• Wishing for the unlikely possible — Would that I had wealth so I could give charity.
• Literal versus transferred force — Would that / whether / if.
• Laʿalla and a subsequent subjunctive — Perhaps I may perform pilgrimage and then visit you.
• Report versus performative — Zayd is standing / Stand up.