“Nuzilat fī kadhā”
“This verse was revealed about such-and-such.”
In early usage, that wording does not always assert that the stated event immediately preceded the verse's first revelation. It may identify the type of case governed by the verse, exemplify its meaning or present a legal inference derived from it.
If a scholar applied an already-revealed verse to a later incident and said it was “about” that case, the report can be one of application, not a chronological claim. The wording must be read in its particular setting.