וַיֹּ֨אמֶר יְהוָ֜ה אֵלַ֗י בִּימֵי֙ יֹאשִׁיָּ֣הוּ הַמֶּ֔לֶךְ הֲֽרָאִ֔יתָ אֲשֶׁ֥ר עָשְׂתָ֖ה מְשֻׁבָ֣ה יִשְׂרָאֵ֑ל הֹלְכָ֨ה הִ֜יא עַל־כָּל־הַ֣ר גָּבֹ֗הַּ וְאֶל־תַּ֛חַת כָּל־עֵ֥ץ רַעֲנָ֖ן וַתִּזְנִי־שָֽׁם׃
Rashi on Jeremiah
In the days of King Josiah when He commanded me to bring back the Ten Tribes, “Have you seen what the backsliding Israel has done? משבה is the same as שובבה, (envejjsede in O.F).
Rashi on Jeremiah
she goes i.e., when she was still on her land before she was exiled in the days of Hezekiah with Hoshea son of Elah.