有ゆう力りょく筋すじ

noun

influential quarters; authoritative sources

Used in news and formal contexts to refer to people or groups with influence who provide information, often anonymously.

• 有ゆう力りょく筋すじによると、来らい月げつにも新しん制せい度どが発はっ表ぴょうされる見み通とおしだ。

  According to influential sources, the new system is expected to be announced as early as next month.