Midrash sa Genesis 30:15: Seder Olam Rabbah, Midrash Tanchuma, Midrash Tanchuma Buber & Bamidbar Rabbah

Our forefather Jacob was 63 when he was blessed. Ishmael died at that time as is written, "Esau saw that Isaac had blessed...Jacob listened to his father...Esau saw [the Canaanite women] were bad [in the eyes of Isaac]...Esau went to Ishmael..."(Genesis 28:9). There seems no need for the verse to state "sister of Nebaioth." What do we learn from the fact that it says "sister of Nebaioth"? We learn that Ishmael died and Nebaioth [Ishmael's firstborn therefore] married off his sister to Esau. Jacob our forefather hid [from Esau] 14 years in the land of Israel and served Eber. Eber died two years after Jacob went to Aram-Naharaim. [Jacob] left and went to Aram-Naharaim and he was found by the well when he was 77 years old and he was in Laban's house for 20 years: 7 before he married any matriarchs, 7 from when he married in the Matriarchs and 6 years after the 11 tribes and Dinah were born. It comes out that all the tribes were born in seven years besides Benjamin. Each and every one each 7 months. He left Aram-Naharaim and came to Succoth and stayed there 18 months as is written "And Jacob went to Succoth" (Genesis 33:17). He left Succoth and went to Bet El and made 6 new encampments close to the place.

Observe that when the Holy One, blessed be He, was about to fashion Eve, He gave considerable thought to the parts of Adam’s body out of which He would create her. He said: If I create her out of a portion of his head, she will be haughty; if I fashion her from his eyes, she will be inquisitive; if I mold her out of his mouth, she will babble; from the ear, she will be an eavesdropper; from the hands, she will steal; and from the feet, she will be a gadabout. What did He do? He fashioned her out of one of Adam’s ribs, a chaste portion of the body, so that she would stay modestly at home, as it is said: And the rib which the Lord had taken (Gen. 2:22). Nevertheless, women do not lack any of these failings. He did not create her from the head of Adam lest she be haughty, nevertheless the daughters of Zion arose and were haughty, as is said: Moreover, the Lord said: Because the daughters of Zion are haughty (Isa. 3:16). He did not fashion her from his eyes lest she be inquisitive, yet Eve was inquisitive, as it is said: And the woman saw that the tree was good (Gen. 3:6). He did not mold her from his mouth lest she babble, but Leah came and babbled, as it is written: And she said unto her: “Is it a small matter that thou hast taken away my husband?” (Gen. 30:15), and it states elsewhere: And Miriam and Aaron spoke against Moses (Num. 12:1). He did not create her from the ear, lest she eavesdrop, yet Sarah did eavesdrop, as is said: And Sarah heard in the tent door (Gen. 18:10); He did not fashion her out of his hand, lest she steal, nevertheless Rachel stole the teraphim, as it is said: And Rachel stole (ibid. 31:19); He did not create her from the foot, lest she be a gadabout, but Leah came and was a gadabout, as is said: And Leah went out (ibid. 30:16), and similarly Dinah went out (ibid. 34:1).

Because thou wentest up to thy father’s bed (ibid.). When did this occur? At the incident of the mandrakes. Leah said: Is it a small matter that thou hast taken away my husband? And wouldst thou take away my son’s mandrakes also? (Gen. 30:15).