שָׁמ֣֛וֹר אֶת־י֥וֹם֩ הַשַׁבָּ֖֨ת לְקַדְּשׁ֑֜וֹ כַּאֲשֶׁ֥ר צִוְּךָ֖֣ ׀ יְהוָ֥֣ה אֱלֹהֶֽ֗יךָ
Observe the sabbath day, to keep it holy, as the LORD thy God commanded thee.
Find Mishnaic references to Deuteronomy 5:12: , passages from the 63 tractates of the Mishnah.