A.T. Robertson Commentary Luke 10:26

"And he said unto him, What is written in the law? how readest thou?" — Luke 10:26 (ASV)

How readest thou? (πως αναγινωσκεισ; ). As a lawyer it was his business to know the facts in the law and the proper interpretation of the law. See on Lu 7:30 about νομικος (lawyer). The rabbis had a formula, "What readest thou?"