Why does “أَنْبَتَ اللهُ الْبَقْلَ” count as ḥaqīqah ʿaqliyyah?

ʿIlm al-Maʿānī: Predication, Emphasis, and Rational Metaphor

• It has no verb
• It contains a question particle
• Growth is attributed to its real agent
• Its subject is necessarily figurative