וַיְהִ֨י הַיּ֜וֹם וַיַּעֲבֹ֧ר אֱלִישָׁ֣ע אֶל־שׁוּנֵ֗ם וְשָׁם֙ אִשָּׁ֣ה גְדוֹלָ֔ה וַתַּחֲזֶק־בּ֖וֹ לֶאֱכָל־לָ֑חֶם וַֽיְהִי֙ מִדֵּ֣י עָבְר֔וֹ יָסֻ֥ר שָׁ֖מָּה לֶאֱכָל־לָֽחֶם׃
Rashi on II Kings
There [lived] a prominent woman. [I.e.,] an important [woman]. And I saw in Pirkei of Rabbi Eliezer,10Chapter 23. that she was the sister of Avishag the Shunamis.11See I Melochim 1:1-4.12She is also identified as the mother of Iddo the prophet.—Radak See I Melochim 13:1 and Rashi there.
Metzudat David on II Kings
He wanted to say, come on the day that Elisha passed through Sunam