Sahih Muslim Book 8, Hadith Number 3450.
Anas (Allah be pleased with him) reported that Allah’s Apostle (May peace be upon him) had nine wives. So when he divided (his stay) with them, the turn of the first wife did not come but on the ninth (day). They (all the wives) used to gather every night in the house of one where he had to come (and stay that night). It was (the night when he had to stay) in the house of ‘Aisha (Allah be pleased with her), when Zainab came there. He (the Holy Prophet) stretched his hand towards her (Zainab), whereupon she (‘Aisha) said: It is Zainab. Allah’s Apostle (May peace be upon him) withdrew his hand. There was an altercation between the two until their voices became loud (and it was at that time) when Iqama was pronounced for prayer. There happened to come Abu Bakr and he heard their voices and said: Messenger of Allah, (kindly) come for prayer, and throw dust in their mouths. So the Prophet (May peace be upon him) went out. ‘Aisha said: When Allah’s Apostle (May peace be upon him) would finish his prayer there would also come Abu Bakr and he would do as he does (on such occasions i.e. reprimanding). When Allah’s Apostle (May peace be upon him) had finished his prayer, there came to her Abu Bakr and spoke to her (‘Aisha) in stern words and said: Do you behave like this?