Reference for Bava Batra 202:1

קבורת חמורים היא זו

'This<span class="x" onmousemove="('comment',' I.e., burial in an upright position. ');">¹</span> is the burial of asses'? — According to R. Johanan they are made in the corner[s].<span class="x" onmousemove="('comment',' The corners formed by the wall facing the entrance and the respective two walls adjacent to it, the chambers projecting into the corners in a slanting direction. V. fig. 1. ');">²</span>

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