وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّهُ كَانَ يَقُولُ لاَ تَبِيتُ الْمُتَوَفَّى عَنْهَا زَوْجُهَا وَلاَ الْمَبْتُوتَةُ إِلاَّ فِي بَيْتِهَا ‏.‏

Yahya related to me from Malik from Nafi that Abdullan ibn Umarsaid, "The only place a woman whose husband has died and a woman whois absolutely divorced can spend the night is in their houses." Translation Not Available

Book Ref: Muwatta Imam Malik Book 29 Hadith 1254
Web Ref:  Muwatta Imam Malik Book 29 Hadith 90