Must the bearer of a ḥāl always be a subject?

Appendix to Faṣl and Waṣl: Circumstantial Clauses, Wāw and Pronominal Linkage

• Yes, an object never bears ḥāl
• No, a suitable object may be the bearer
• Yes, but only with the imperfect
• No, only a prepositional phrase can bear it