The word(s) "maturity" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Pickthal translation.

(1) When Allah saith: O Jesus, son of Mary! Remember My favour unto thee and unto thy mother; how I strengthened thee with the holy Spirit, so that thou spakest unto mankind in the cradle as in maturity; and how I taught thee the Scripture and Wisdom and the Torah and the Gospel; and how thou didst shape of clay as it were the likeness of a bird by My permission, and didst blow upon it and it was a bird by My permission, and thou didst heal him who was born blind and the leper by My permission; and how thou didst raise the dead by My permission; and how I restrained the Children of Israel from (harming) thee when thou camest unto them with clear proofs, and those of them who disbelieved exclaimed: This is naught else than mere magic;

(2) And approach not the wealth of the orphan save with that which is better, till he reach maturity. Give full measure and full weight, in justice. We task not any soul beyond its scope. And if ye give your word, do justice thereunto, even though it be (against) a kinsman; and fulfil the covenant of Allah. This He commandeth you that haply ye may remember.