it's my mother who
My mother did it.
C'est ma mère qui veut ça, je l'accepte.
It's my mother who wants this, so I accept it.
— The Big Sick (2017)
My mother told me that.
De toutes les femmes, c'est ma mère qui cuisine le mieux.
Of all the women, my mother cooks the best.
C'est ma mère qui les a faits.
My mother made them.
Dans ma famille, c'est ma mère qui se lève le plus tôt.
In my family, my mother is the one who gets up the earliest.