"A stranger and a resident am I among you" (Genesis 23:4). A stranger is a tenant; a resident is a householder [owner of the house]. [Abraham meant:] If you are willing, I am a stranger; and if not, I am a householder, for thus the Holy One, blessed be He, said to me, "To your seed I have given this land." "Give me a possession for a burying place among you, that I may bury my dead" (Genesis 23:4): there is one dead. (Another interpretation: I ask of you nothing but a single grave, as it is said, "Give me a possession for a burying place.")
A Stranger and a Resident Among You Said Abraham
Yalkut Shimoni on Torah 102:16
גֵּר וְתוֹשָׁב אָנֹכִי עִמָּכֶם, גֵּר דַּיָּר תּוֹשָׁב מָרֵי בֵּיתָא אִם רְצִיתֶם גֵּר, וְאִם לָאו מָרֵי בֵּיתָא שֶׁכָּךְ אָמַר לִי הַקָּדוֹשׁ בָּרוּךְ הוּא, "לְזַרְעֲךָ נָתַתִּי אֶת הָאָרֶץ הַזֹּאת". תְּנוּ לִי אֲחֻזַּת קֶבֶר עִמָּכֶם וְאֶקְבְּרָה מֵתִי, חַד מִית (דָּבָר אַחֵר, אֵינִי מְבַקֵּשׁ מִכֶּם אֶלָּא מֵת אֶחָד, שֶׁנֶּאֱמַר תְּנוּ לִי אֲחֻזַּת קֶבֶר).