Reference for Pesachim 201:4

אמר להו רב ענן בר תחליפא זימנין סגיאין הוה קאימנא קמיה דשמואל ונחית מאיגרא לארעא והדר מקדש

but [to adjourn] from one place to another in the same house is not [forbidden]. Said R''Anan B'Tahlifa to them: On many occasions I was standing before Samuel, when he descended from the roof to the ground and then recited [again] kiddush.<span class="x" onmousemove="('comment',' V. R. Hananel. Proving that you must not adjourn from one place to another even in the same house.');">⁴</span>

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