Luke 2:45 DBY

⁴³  and had completed the days, as they returned, the boy Jesus remained behind in Jerusalem, and his parents knew not [of it];

⁴⁴  but, supposing him to be in the company that journeyed together, they went a day's journey, and sought him among their relations and acquaintances:

⁴⁵  and not having found him they returned to Jerusalem seeking him.

⁴⁶  And it came to pass, after three days they found him in the temple, sitting in the midst of the teachers and hearing them and asking them questions.

⁴⁷  And all who heard him were astonished at his understanding and answers.