Wyjścia 21:26 Midrasz: Pesikta Rabbati, Mekhilta DeRabbi Yishmael & Midrash Tanchuma

... Teach us, oh master – may one light a lamp for personal use from the Channukah lights? Our masters taught us – R’ Acha said in the name of Rav ‘it is forbidden to light a lamp to use from the Channukah lights, but one may light a Channukah light from a Channukah light.’ From where did they learn that it is permissible to light a Channukah light (from it)? R’ Yaakov ben Aba said, they learned it from the menorah that was in the Holy of Holies, as our rabbis taught that if one found they had gone out, they should be cleaned out and re-lit from those that are still lit. (Tamid 3) If we would relight an extinguished lamp of the menorah, which was placed in the innermost sanctum, from the lamps still burning all the more so it is permissible to light a Channukah light from the lights still burning.’ The Holy One said, just as in this world lamps were lit in the Holy of Holies, so too I will do when I rebuild Jerusalem. From where do we know this? From the words of the prophet “And it shall come to pass on that day, that I will search Jerusalem with candles…” (Tzephaniah 1:12)

(Exodus 21:26) "And if a man strike the eye of his (Canaanite) man-servant": What is the intent of this? From (Leviticus 25:26) "Forever shall you have them serve you," I might think, even if he knocked out his tooth or blinded his eye; it is, therefore, written "And if a man strike the eye of his man-servant or the tooth of his maid-servant, etc." Scripture took his Canaanite man-servant out of his class (of serving forever) to the end of leniency, (a Hebrew man-servant not going free in this manner.)

(Exodus 21:26) "And if a man strike the eye of his (Canaanite) man-servant": What is the intent of this? From (Leviticus 25:26) "Forever shall you have them serve you," I might think, even if he knocked out his tooth or blinded his eye; it is, therefore, written "And if a man strike the eye of his man-servant or the tooth of his maid-servant, etc." Scripture took his Canaanite man-servant out of his class (of serving forever) to the end of leniency, (a Hebrew man-servant not going free in this manner.)