<p>He is to think the words in his mind and not recite them until he washes hands.</p>
<hr class="shulchan-footnotes-sep"><section class="shulchan-footnotes"><div class="shulchan-footnotes-body"><ol><li id="shulchan-fn-1">See Kaf Hachaim 4:108; Vetzaruch Iyun from Basra 4:1 which allows reciting blessings in a case that one does not have water. [see Ketzos Hashulchan 1 footnote 9] <a class="shulchan-fn-back" href="#shulchan-fnref-1" aria-label="Back to text">↩</a></li></ol></div></section>

Shulchan Aruch HaRav | What is one to do if he heard Kaddish or Kedusha prior to washing his hands upon awaking?

He is to think the words in his mind and not recite them until he washes hands.