وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ أَبِي النَّضْرِ، مَوْلَى عُمَرَ بْنِ عُبَيْدِ اللَّهِ عَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ، أَنَّهُ قَالَ سَأَلْتُ عَائِشَةَ زَوْجَ النَّبِيِّ صلى الله عليه وسلم مَا يُوجِبُ الْغُسْلَ فَقَالَتْ هَلْ تَدْرِي مَا مَثَلُكَ يَا أَبَا سَلَمَةَ مَثَلُ الْفَرُّوجِ يَسْمَعُ الدِّيَكَةَ تَصْرُخُ فَيَصْرُخُ مَعَهَا إِذَا جَاوَزَ الْخِتَانُ الْخِتَانَ فَقَدْ وَجَبَ الْغُسْلُ .
Yahya related to me from Malik from Abu'n Nadr, the mawla of Umaribn Abdullah that Abu Salamaibn Abdar-Rahman ibn Awf related that hehad asked A'isha, the wife of the Prophet, may Allah bless him andgrant him peace, what made ghusl obligatory. She said, "Do you knowwhat you are like, Abu Salama? You are like a chick when it hears thecocks crowing and so crows with them. When the circumcised part passesthe circumcised part, ghusl is obligatory." Translation Not Available
Book Ref: Muwatta Imam Malik Book 2 Hadith 104
Web Ref: Muwatta Imam Malik Book 2 Hadith 74