Reference for Middot 4:4

הַתַּחְתּוֹנָה, חָמֵשׁ, וְרֹבֶד שֵׁשׁ. וְהָאֶמְצָעִית, שֵׁשׁ, וְרֹבֶד שֶׁבַע. וְהָעֶלְיוֹנָה, שֶׁבַע, שֶׁנֶּאֱמַר (מלכים א ו), הַיָּצִיעַ הַתַּחְתּוֹנָה חָמֵשׁ בָּאַמָּה רָחְבָּהּ וְהַתִּיכֹנָה שֵׁשׁ בָּאַמָּה רָחְבָּהּ וְהַשְּׁלִישִׁית שֶׁבַע בָּאַמָּה רָחְבָּה:

The [cell] on the bottom [row] were five <i>amot</i> wide and [they formed] a ledge six <i>amot</i> wide, and the middle [cells formed] a ledge of seven <i>amot</i> and the [cells] on top [were] seven [<i>amot</i> wide], as it says , "The lowest cell was five <i>amot</i> wide, and the middle was six <i>amot</i> wide, and the third was seven <i>amot</i> wide." (I Kings 6:6)

Jastrow