Reference for Megillah 4:10
מַעֲשֵׂה רְאוּבֵן (בראשית לה), נִקְרָא וְלֹא מִתַּרְגֵּם. מַעֲשֵׂה תָמָר (שם), נִקְרָא וּמִתַּרְגֵּם. מַעֲשֵׂה עֵגֶל הָרִאשׁוֹן (שמות לב), נִקְרָא וּמִתַּרְגֵּם. וְהַשֵּׁנִי (שם), נִקְרָא וְלֹא מִתַּרְגֵּם. בִּרְכַּת כֹּהֲנִים (במדבר ו), מַעֲשֵׂה דָּוִד (שמואל ב יא) וְאַמְנוֹן (שם יג), לֹא נִקְרָאִין וְלֹא מִתַּרְגְּמִין. אֵין מַפְטִירִין בַּמֶּרְכָּבָה (יחזקאל א), וְרַבִּי יְהוּדָה מַתִּיר. רַבִּי אֱלִיעֶזֶר אוֹמֵר, אֵין מַפְטִירִין בְּהוֹדַע אֶת יְרוּשָׁלַיִם (שם טז):
The episode of Reuven (and Bilhah) is read and not translated. The episode of Amnon and Tamar is read and translated. [And we are not apprehensive for David's honor. This, when it is not written "Amnon son of David" (see below)]. The first part of the episode of the golden calf is read and translated. [And we are not apprehensive for the honor of Israel.] The second part of the episode of the golden calf [from (Exodus 32:21): "And Moses said to Aaron" until (Ibid. 25): "And Moses saw the people, etc." and (Ibid. 35): "And the L-rd sent a plague among the people, etc."] is read and not translated, [in deference to Aaron]. The priestly blessing [is read and not translated because it includes (Numbers 6:26): "The L-rd lift His countenance unto you." So that they not say that the Holy One Blessed be He (gratuitously) lifts His countenance (in forgiveness) — and they, not knowing that Israel merits the lifting of His countenance to them.] The episode of David and Amnon is not read [in the haftarah] and not translated [ — all those verses where it is written "Amnon son of David." But those where "Amnon" alone is written — it is stated above: "The episode of Amnon and Tamar is read and translated."] There is no haftarah reading in the Divine Chariot (Ezekiel 1) [lest they come to question and probe therein.] R. Yehudah permits it. [And the halachah is in accordance with him.] R. Eliezer says: there is no haftarah reading in (Ezekiel 16): "Make known unto Jerusalem, etc.", [for the honor of Jerusalem. The halachah is not in accordance with R. Eliezer.]