במדבר ט׳:ט׳-י״ד

או בדרך רחקה. נָקוּד עָלָיו, לוֹמַר, לֹא שֶׁרְחוֹקָה וַדַּאי, אֶלָּא שֶׁהָיָה חוּץ לְאַסְקֻפַּת הָעֲזָרָה כָּל זְמַן שְׁחִיטָה (פסח' צ"ג); פֶּסַח שֵׁנִי מַצָּה וְחָמֵץ עִמּוֹ בַּבַּיִת, וְאֵין שָׁם יוֹם טוֹב, וְאֵין אִסּוּר חָמֵץ אֶלָא עִמּוֹ בַאֲכִילָתוֹ (שם צ"ה):

Or on a distant road. There is a dot over this, as if to say: Not that it was definitely distant, but that he was outside the threshold of the [Temple] courtyard thoughout the time for slaughtering [the Pesach]. [At] the second Pesach, matzoh and chometz may be with him at home; it is not considered ‘yom tov’; and chometz is not prohibited except while he eats [the korbon].

וכי יגור אתכם גר ועשה פסח. יָכוֹל כָּל הַמִּתְגַּיֵּר יַעֲשֶׂה פֶסַח מִיָּד, תַּ"ל "חֻקָּה אַחַת" וְגוֹ', אֶלָּא כָּךְ מַשְׁמָעוֹ — "וְכִי יָגוּר אִתְּכֶם גֵּר" וּבָא לַעֲשׂוֹת פֶּסַח עִם חֲבֵרָיו, "כְּחֻקַּת הַפֶּסַח וּכְמִשְׁפָּטוֹ יַעֲשֶׂה" (ספרי):

If a proselyte dwells among you, and brings the Pesach-offering. Perhaps everyone who converts must immediately bring the Pesach-offering? The Torah therefore teaches, “One statute, etc . . .” Rather, this is its meaning: “If a proselyte dwells among you, and he comes to bring the Pesach-offering with his fellows, according to the statutes of the Pesach-offering and its laws shall he do.”