Reference for Niddah 132:19

מאי בינייהו

the actual mingling is indispensable.<span class="x" onmousemove="('comment',' Similarly in the case of ritual immersion, though the water need not penetrate to all parts of the body, the immersion is invalid if owing to dirt or some other interception the water cannot penetrate everywhere. ');">¹⁹</span>

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow