Hadith #44The Book of Purification and its Sunnah · Narrated by Abdullah bin al-'Ala' عبد الله بن العلاء بن زبر, al-Walid bin Muslim al-Quraishi الوليد بن مسلم القرشي, Arbad bin Sariyya al-Salmi, Yahya bin Abi al-Mta' يحيى بن أبي المطاع القرشي الأردني
“My father told me that he heard the Messenger of Allah say: ‘When anyone of you urinates, let him not touch his penis with his right hand nor clean himself with his right hand.'”
Another chain with similar wording.