不在其位，不謀其政 [－－－－－－谋－－]

Jyutping bat1 zoi6 kei4 wai6 ， bat1 mau4 kei4 zing3
Pinyin bù zài qí wèi ， bù móu qí zhèng

Definitions (Wiktionary)
  1. proverb
    If you do not hold the post, do not meddle in the affairs of that post.