Yahya related to me from Malik from Ibn Shihab from Said ibn al- Musayyab that Umar ibn al-Khattab and Uthman ibn Affan and A'isha, the wife of the Prophet ﷺ used to say, "When the circumcised part touches the circumcised part, ghusl is obligatory."  

أَنَّ عُمَرَ بْنَ الْخَطَّابِ وَعُثْمَانَ بْنَ عَفَّانَ وَعَائِشَةَ زَوْجَ النَّبِيِّ ﷺ كَانُوا يَقُولُونَ إِذَا مَسَّ الْخِتَانُ الْخِتَانَ فَقَدْ وَجَبَ الْغُسْلُ  

[Machine] "Umar ibn Al-Khattab, Uthman ibn Affan, and Aisha, the wife of the Prophet ﷺ, used to say, when circumcision is touched, washing becomes obligatory."  

أَنَّ عُمَرَ بْنَ الْخَطَّابِ وَعُثْمَانَ بْنَ عَفَّانَ وَعَائِشَةَ زَوْجَ النَّبِيِّ ﷺ كَانُوا يَقُولُونَ إِذَا مَسَّ الْخِتَانُ الْخِتَانَ فَقَدْ وَجَبَ الْغُسْلُ