Midrash su Esodo 40:1

This is one of the three things to which Moses devoted himself: the law, judgeships and Israel. R. Hiyya the son of Yosé said: Moses also was deeply involved in the building of the Tabernacle. And it is called by his name. R. Hiyya the son of Yosé said: Throughout the seven days of consecration, Moses took apart the Tabernacle twice each day and then assembled it. The elder R. Hiyya said: He did it three times each day, for it is said: Thou shalt rear up (Exod. 40:1), The Tabernacle was reared up (ibid., v. 17), and Moses reared up the Tabernacle (ibid., v. 18).