Bereshis 35:21-23 Orthodox Jewish Bible (OJB)
21 And Yisroel journeyed, and pitched his ohel beyond Migdal-Eder.
22 And it came to pass, when Yisroel dwelt in that land, that Reuven went and lay with Bilhah pilegesh aviv and Yisroel heard it. Now the Bnei Ya’akov were Sheneym Asar (Twelve);
23 The Bnei Leah: Reuven bechor Ya’akov, and Shimon, and Levi, and Yehudah, and Yissakhar, and Zevulun;