冤有頭，債有主

for every grievance someone is responsible, for every debt there is a debtor (idiom) / when settling disputes one should not involve third parties

to have; there is / (bound form) having; with; -ful; -ed; -al (as in 有意[you3 yi4] intentional)

owner / master / host / individual or party concerned / God / Lord / main / to indicate or signify / trump card (in card games)

injustice / grievance / wrong

old variant of 冤[yuan1]

debt / CL:筆|笔[bi3]

head / hair style / the top / end / beginning or end / a stub / remnant / chief / boss / side / aspect / first / leading / classifier for pigs or livestock / CL:個|个[ge4]

suffix for nouns