Luke 2:41 YLT

³⁹  And when they finished all things, according to the Law of the Lord, they turned back to Galilee, to their city Nazareth;

⁴⁰  and the child grew and was strengthened in spirit, being filled with wisdom, and the grace of God was upon him.

⁴¹  And his parents were going yearly to Jerusalem, at the feast of the passover,

⁴²  and when he became twelve years old, they having gone up to Jerusalem, according to the custom of the feast,

⁴³  and having finished the days, in their returning the child Jesus remained behind in Jerusalem, and Joseph and his mother did not know,