"(She should wait) for the longer of the two periods." Abu Salamah said: "When she has given birth, it becomes permissible for her to remarry." Abu Hurairah came and said: "I agree with my brother's son" -meaning Abu Salamah bin 'Abdur-Rahman. They sent Kuraib, the freed slave of Ibn 'Abbas, to Umm Salamah to ask her about that. He came back to them and told them that she said: "Subai'ah gave birth one day after her husband died;" she mentioned that to the Messenger of Allah and he said: "It has become permissible for you to marry." (Using translation from Nasāʾī 3514)
وَقَالَ أَبُو سَلَمَةَ إِذَا نُفِسَتْ فَقَدْ حَلَّتْ فَجَاءَ أَبُو هُرَيْرَةَ فَقَالَ أَنَا مَعَ ابْنِ أَخِي يَعْنِي أَبَا سَلَمَةَ فَبَعَثُوا كُرَيْبًا مَوْلَى ابْنِ عَبَّاسٍ إِلَى أُمِّ سَلَمَةَ يَسْأَلُهَا عَنْ ذَلِكَ فَجَاءَهُمْ فَأَخْبَرَهُمْ أَنَّهَا قَالَتْ وَلَدَتْ سُبَيْعَةُ الْأَسْلَمِيَّةُ بَعْدَ وَفَاةِ زَوْجِهَا بِلَيَالٍ فَذَكَرَتْ ذَلِكَ لِرَسُولِ اللهِ ﷺ فَقَالَ «قَدْ حَلَلْتِ»