Question

I received few videos and some hadith in Whats app that we are supposed to give only one goat as qurbani for the whole family (Husband, wife, Mother, Father, children), i.e one earner in the house one goat., they are giving reference of Ibne Majah. And if that person can afford he can give how many he can afford.  So please enlighten me in this regard according to sun nah that one goat per person or one goat per earner/ whole family.