Al-Adab Al-Mufrad #1103

Abu Abdul Malik, the mawla of Umm Miskin, the daughter of ('Umar) ibn 'Asim ibn 'Umar ibn al-Khattab, said, "My mistress sent me to Abu Hurayra and he came with me. When he was at the door, he asked in Persian, 'Can we come in?' 'Come in!' she replied.' Then she said, 'Abu Hurayra, if visitors come to me after 'Isha', should I enter into conversation with them?' He replied, 'Converse as long as you have not done the witr prayer. If you have done the witr, there is no conversation after it.'"