סימן קא סעיף ו
פְּתִילוֹת שֶׁהִדְלִיק בָּהֶן בְּיוֹם טוֹב רִאשׁוֹן וְכָבוּ, מֻתָּר לְהַדְלִיק בָּהֶן בְּיוֹם טוֹב שֵׁנִי. אַךְ בִּשְׁנֵי יָמִים טוֹבִים שֶׁל רֹאשׁ הַשָּׁנָה, אָסוּר לְהַדְלִיק בְּיוֹם טוֹב שֵנִי בִּפְתִילָה שֶׁכָּבְתָה בְּיוֹם רִאשׁוֹן, וַאֲפִלּוּ בַּקָּצֶה הַשֵּׁנִי. וּמִכָּל מָקוֹם מֻתָּרוֹת בְּטִלְטוּל לַהֲסִירָן וְלָתֵת חֲדָשׁוֹת. וְכֵן בְּיוֹם טוֹב שֶׁלְּאַחַר שַׁבָּת (ט"ז סוֹף סִימָן תקא).
Wicks that were lit on the first (night of) Yom Tov and were extinguished, may be lit on the second day of Yom Tov. But, on the two days of Rosh Hashanah it is forbidden to light a wick on the second day that was extinguished on the first day. It is forbidden to light them even at the other end.15Taz 501:7. The reason is, since a charred wick lights better than an uncharred one, the wick has been prepared from one day Rosh Hashanah to the second day. The Ramah, Rosh, Or Zarua, Meiri etc. permit it because it is possible to light an uncharred wick so it is not considered preparation. The Peri Chadash and Eliyahu Rabbah say those who are stringent will be blessed. The Mishnah Berurah says that you should try to be stringent and prepare different wicks in advance (before Rosh Hashanah) and if not, at least light the other end. The Shaar Hatziyun 501:43 permits lighting the uncharred end. The Taz forbids this to ensure you do not light the charred tip. However, you are allowed to handle them in order to remove and replace them.16You may handle them in order to use them or if you need the space they occupy. (Shulchan Aruch Harav 501) According to one opinion in the Peri Megadim M.Z. 501:7, you may not handle the remnants of the wick, even for the space it occupies. The same law applies when Yom Tov occurs the day after Shabbos.17When the first day of Yom Tov follows Shabbos. (Taz)
תנא דבי אליהו כל השונה הלכות בכל יום מובטח לו שהוא בן העולם הבא שנאמר הליכות עולם לו אל תקרי הליכות אלא הלכות (נדה ע"ג.)