וַתָּ֙רָץ֙ הַֽנַּעֲרָ֔ וַתַּגֵּ֖ד לְבֵ֣ית אִמָּ֑הּ כַּדְּבָרִ֖ים הָאֵֽלֶּה׃
Und das Mädchen lief und erzählte im Hause ihrer Mutter, was sich zugetragen hatte.
Rashi on Genesis
לבית אמה [AND TOLD IT] TO THEM OF HER MOTHER’S HOUSE — It was customary for the women to have their own apartments to sit in at their work — and a daughter, of course, confides only in her mother (Genesis Rabbah 60:7).
Radak on Genesis
ותרץ, she ran home full of joy and told what happened in her mother’s house. She did not tell anything in her father’s house for a daughter shares her experiences with her mother and not with her father.
Siftei Chakhamim
And a daughter confides only in her mother. Although it is written about Rachel: “She ran and told her father” (29:12), that was because her mother had died. (Bereishis Rabbah)