"not having hated him": If he had hated him, he is not exiled.

"mitmol shilshom": As R. Yehudah says: "tmol": two days; "shilshom": three days (see #181).

(Ibid. 7) "Therefore, I command you, saying": Beth-din is being exhorted to this end.

(Devarim 19:8) "And if the L-rd your G-d broaden your border": Do the mitzvah stated herein, in reward for which the L-rd will broaden your border.