במדבר ז׳:י״ב-י״ז

ביום הראשון. אוֹתוֹ הַיּוֹם נָטַל עֶשֶׂר עֲטָרוֹת, רִאשׁוֹן לְמַעֲשֵׂה בְרֵאשִׁית, רִאשׁוֹן לַנְּשִׂיאִים וְכוּ', כִּדְאִיתָא בְסֵדֶר עוֹלָם:

On the first day. That day took ten crowns; [it fell on] the first [day] of creation, first of the leaders, etc., as recorded in Seder Olam.

למטה יהודה. יִחֲסוֹ הַכָּתוּב עַל שִׁבְטוֹ, וְלֹא שֶׁגָּבָה מִשִּׁבְטוֹ וְהִקְרִיב, אוֹ אֵינוֹ אוֹמֵר "לְמַטֵּה יְהוּדָה" אֶלָּא שֶׁגָּבָה מִשִּׁבְטוֹ וְהֵבִיא, תַּ"ל "זֶה קָרְבַּן נַחְשׁוֹן" — מִשֶּׁלּוֹ הֵבִיא (שם):

Of the tribe of Yehudah. Scripture establishes his tribal kinship; but not that he solicited [payment] from his tribe and then brought [the offering]. But perhaps I should say לְמַטֵּה יְהוּדָה, “for the tribe of Yehudah,” [teaching] that he solicited payment from his tribe and then brought [the offering]? The Torah therefore teaches “this is Nachshon’s offering.” He brought his own.

שניהם מלאים סלת. לְמִנְחַת נְדָבָה:

Both were filled with fine flour. As a voluntary meal-offering.

עשרה זהב. כְּתַרְגּוּמוֹ, מִשְׁקַל עֶשֶׂר שִׁקְלֵי הַקֹּדֶשׁ הָיָה בָהּ:

[Of] ten gold [shekolim]. As Targum [Onkelos] interprets, the weight of ten shekolim by the Sanctuary standard was in it.

מלאה קטרת. לֹא מָצִינוּ קְטֹרֶת לְיָחִיד וְלֹא עַל מִזְבֵּחַ הַחִיצוֹן אֶלָּא זוֹ בִּלְבַד, וְהוֹרָאַת שָׁעָה הָיְתָה (מנחות נ'):

Filled with incense. We do not find incense [brought] by an individual, nor [brought] on the outer altar, except for this one alone. This was a temporary injunction.

פר אחד. מְיֻחָד שֶׁבְּעֶדְרוֹ (עי' ספרי):

One [young] bull. The best of its herd.

שעיר עזים אחד לחטאת. לְכַפֵּר עַל קֶבֶר הַתְּהוֹם — טֻמְאַת סָפֵק (עי' ספרי):

One he-goat as a sin-offering. To atone for [defilement by passing over] the grave of the abyss — [for] indefinite defilement.