Muwatta Malik 1706

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، أَنَّ عُمَرَ بْنَ الْخَطَّابِ، قَالَ إِيَّاكُمْ وَاللَّحْمَ فَإِنَّ لَهُ ضَرَاوَةً كَضَرَاوَةِ الْخَمْرِ ‏.‏

Yahya said that Malik was asked, "Can a woman eat with other than her relative or slave?" Malik said, "There is no harm in that if it is in a manner which is accepted for a woman to eat with men." Malik said, "A woman sometimes eats with her husband and with others he dines with or with her brother in the same way. It is disapproved of for a woman to be alone with a man when there is no relationship between them by blood, marriage or suckling that would prevent him marrying her." Hadith Translation Not available

Reference

Muwatta Malik 1706

In-book

Book 49, Hadith 36