The song "Al Hanisim" is popularly sung on Hanukkah by many Jews everywhere. However, I've noticed a discrepancy:
On this website it states that the lyrics are:
עַל הַנִּסִּים, וְעַל הַפֻּרְקָן, וְעַל הַגְּבוּרוֹת, וְעַל הַתְּשׁוּעוֹת, וְעַל הַמִּלְחָמוֹת, שֶׁעָשִֽׂיתָ לַאֲבוֹתֽינוּ בַּיָּמִים הָהֵם בַּזְּמַן הַזֶּה.
However, on Chabad's website, it states that the text is:
עַל הַנִּסִּים, וְעַל הַפֻּרְקָן, וְעַל הַגְּבוּרוֹת, וְעַל הַתְּשׁוּעוֹת, וְעַל נפלאות, שֶׁעָשִֽׂיתָ לַאֲבוֹתֽינוּ בַּיָּמִים הָהֵם בַּזְּמַן הַזֶּה.
Why the change? Is this just how the song is arranged? Is this a difference with the source text itself (I know that Chabad has a nusah different from other Ashkenazi communities, making changes so some prayers are grammatically correct). Or what?