John 9:26
Then said they to him again, What did he to thee? how opened he thine eyes?
Cross-reference
John 9:10
Parallel
In John 9:10, neighbors ask the same question — the Pharisees repeat it here, showing persistent disbelief.
John 9:15
Parallel
In John 9:15, the man had already told the Pharisees how he was healed — here he rebukes them for not listening.
Luke 6:7
Historical context
In Luke 6:7, Pharisees watch Jesus to accuse him of Sabbath healing — same hostility that drives the questioning in John 9.