וַיְחַבֵּ֛ר אֶת־חֲמֵ֥שׁ הַיְרִיעֹ֖ת לְבָ֑ד וְאֶת־שֵׁ֥שׁ הַיְרִיעֹ֖ת לְבָֽד׃
And he coupled five curtains by themselves, and six curtains by themselves.
Targum Jonathan on Exodus
And he joined five curtains together, corresponding with the five books of the law; and six curtains together, corresponding with the six orders of the Mishna.