Q. Following question above when using a prosthetic electronic right arm , how should one wash netilat yadaim for eating bread, when he is wearing the artificial very realistic looking hand?
A. Horav Shlomo Miller's Shlit'a opinion is that one should wash hands as one always does. Using first the right bionic hand and pouring water over the left hand. Then he may also pour water on his realistic looking plastic right hand, if others are watching and may not be aware that the hand is artificial. This would avoid suspicions that he did not wash netilas yodaim properly.
The Rov added that the right artificial hand can be used for donning tefilin on the other, as mentioned in the above question, washing hands, and similar, but not for holding a lulav and esrog, which should be maintained on the left real hand, to comply with the essential requirement of "Velokachtem Lochem - you should hold for yourselves," mentioned in that mitzva
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit'a
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