«إذا استيقظ أحدكم من نومه فلا يدخل يده الإناء حتى يغسلها»
The Prophet (peace and blessings be upon him) said:
"When one of you wakes from his sleep, let him not put his hand into the vessel until he has washed it."
Hadith Referenceصحیح الجامع الصغیر / حرف الألف / 331