Reference for Pesachim 209:3

דאמר רב כשם שהשבת קובעת למעשר כך שבת קובעת לקידוש

this too is praise.<span class="x" onmousemove="('comment',' To God, for having made a distinction between holy and profane, and it does not treat of any other subject.');">⁴</span> R'Hanania B'Shelemia and the disciples of Rab were sitting at a meal, and R'Hamnuna Saba<span class="x" onmousemove="('comment',' The aged, or the Elder.');">⁵</span>

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