The Messenger of Allah ﷺ said: None of you should hold penis with his right hand while urinating, or wipe himself with his right hand in privy and should not breathe into the vessel (from which he drinks).  

قَالَ رَسُولُ اللَّهِ ﷺ لاَ يُمْسِكَنَّ أَحَدُكُمْ ذَكَرَهُ بِيَمِينِهِ وَهُوَ يَبُولُ وَلاَ يَتَمَسَّحْ مِنَ الْخَلاَءِ بِيَمِينِهِ وَلاَ يَتَنَفَّسْ فِي الإِنَاءِ  

When anyone amongst you enters the privy he should not touch his penis with his right hand.  

قَالَ رَسُولُ اللَّهِ ﷺ إِذَا دَخَلَ أَحَدُكُمُ الْخَلاَءَ فَلاَ يَمَسَّ ذَكَرَهُ بِيَمِينِهِ  

The Messenger of Allah (way peace be upon him) forbade (us) to breathe into the venel, to touch the penis with the right hand and to wipe after relieving with right hand.  

أَنَّ النَّبِيَّ ﷺ نَهَى أَنْ يَتَنَفَّسَ فِي الإِنَاءِ وَأَنْ يَمَسَّ ذَكَرَهُ بِيَمِينِهِ وَأَنْ يَسْتَطِيبَ بِيَمِينِهِ