Tosefta על כלים 1:8

Abba Shaul says, the upper chamber of the Holy of Holies is more stringent than the Holy of Holies [itself], for [with regards to] the Holy of Holies, the High Priest enters into it each and every year for the Yom Kippur service, four times on [that] day, and if he enters a fifth time he is liable for the death penalty, but [with regards to] the upper chamber of the Holy of Holies, they may not enter it but once in seven years (following the GR"A), to determine what is needed. They said to him, "That does not make it of higher [sanctity]." [If] metzorayim (i.e., lepers) entered within the wall [of Jerusalem], they are administered forty [lashes]. Zavim and zavot, niddot, and women after childbirth, [who enter] the Temple Mount are administered eighty [lashes] (Kelim 1:8). One who is impure may enter the Temple Mount, but not one with corpse-impurity. [But] the Sages say, rather, even a corpse itself [may enter the Temple Mount], as it is said (Ex. 13:19), "And Moses took the bones of Joseph with him." "With him" -- into the Camp of the Levites (the functional equivalent of the Temple Mount in the desert). Rabbi Shimon says, [with respect to] the Rampart and the Women's Courtyard in the Temple (lit., "the Eternal House"), the impure people who entered there were exempt.