743 | Washing Hands and Feet on the Seventh Day of Mourning However, I have not found this combination of mixing salt and oil recorded in Westermarck . As to washing hands and feet, in biblical sources this is mentioned as a form of purification in the Temple ( or Tabernacle ) , as in Exodus 30 : 19, 21, which reads concerning Aharon and his sons : For Aharon and his sons shall wash their hand and the feet thereat . . 9 So they shall wash their hands and their feet, that they die not ; . 2 and it shall be a statute for ever to them, even to him and to his seed throughout their generations . This was when they entered the tabernacle “that they die not” ( ibid . 20 ) . So this form of purification was also a protective measure . And although this form of purification does not appear in Talmudic sources, it does in post - Talmudic sources, both in Palestine and Babylonia, on waking and getting up in the morning, before making a benediction, before the morning prayer ( shaharit ) , etc . N...
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