Sunan an-Nasa'i 3506

أَخْبَرَنَا مُحَمَّدُ بْنُ سَلَمَةَ، وَالْحَارِثُ بْنُ مِسْكِينٍ، قِرَاءَةً عَلَيْهِ وَأَنَا أَسْمَعُ، - وَاللَّفْظُ لِمُحَمَّدٍ - قَالاَ أَنْبَأَنَا ابْنُ الْقَاسِمِ، عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، عَنِ الْمِسْوَرِ بْنِ مَخْرَمَةَ، أَنَّ سُبَيْعَةَ الأَسْلَمِيَّةَ، نُفِسَتْ بَعْدَ وَفَاةِ زَوْجِهَا بِلَيَالٍ فَجَاءَتْ رَسُولَ اللَّهِ صلى الله عليه وسلم فَاسْتَأْذَنَتْ أَنْ تَنْكِحَ فَأَذِنَ لَهَا فَنَكَحَتْ ‏.‏

It was narrated from Al-Miswar bin Makhramah that Subai'ah Al-Aslamiyyah gave birth one day after her husband died. She came to the Messenger of Allah and asked his permission to marry, and he gave her permission to marry and she married

Reference

Sunan an-Nasa'i 3506

In-book

Book 27, Hadith 118