には及ばない
Meanings
1
there is no need to; it is fine if you don't; unnecessary
Follows a verb (dictionary form or 〜する必要) to say that an action is not required. Often used to politely decline an offer or to reassure someone.
There's no need for you to come all the way.
You don't need to worry.
2
does not match; out of reach of
Follows a noun to indicate that something is not comparable or cannot reach the level of that noun. Often used in the pattern 〜には及ばない to mean 'cannot compare to' or 'is no match for'.
His ability is no match for a professional's.
This movie doesn't match the fun of the original work.