Sunan an-Nasa'i 3511
Abu Salamah bin 'Abdur-Rahman said:
"It was said to Ibn 'Abbas concerning a woman who gives birth one day after her husband died: 'Can she get married?' He said: 'No, not until the longer of the two periods has ended.' He said: 'Allah says: And for those who are pregnant (whether they are divorced or their husbands are dead), their 'Iddah (prescribed period) is until they lay down their burden.' He said: 'That only applies in the case of divorce.' Abu Hurairah said: 'I agree with my brother's son' --meaning, Abu Salamah. He sent his slave Kuraib and told him: 'Go to Umm Salamah and ask her: Was this the Sunnah of the Messenger of Allah?' He came back and said: 'Yes, Subai'ah Al-Aslamiyyah gave birth twenty days after her husband died, and the Messenger of Allah told her to get married, and Abu As-Sanabil was one of those who proposed marriage to her.'"
أَخْبَرَنِي مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ بَزِيعٍ، قَالَ حَدَّثَنَا يَزِيدُ، - وَهُوَ ابْنُ زُرَيْعٍ - قَالَ حَدَّثَنَا حَجَّاجٌ، قَالَ حَدَّثَنَا يَحْيَى بْنُ أَبِي كَثِيرٍ، قَالَ حَدَّثَنِي أَبُو سَلَمَةَ بْنُ عَبْدِ الرَّحْمَنِ، قَالَ قِيلَ لاِبْنِ عَبَّاسٍ فِي امْرَأَةٍ وَضَعَتْ بَعْدَ وَفَاةِ زَوْجِهَا بِعِشْرِينَ لَيْلَةً أَيَصْلُحُ لَهَا أَنْ تَزَوَّجَ قَالَ لاَ إِلاَّ آخِرَ الأَجَلَيْنِ ‏.‏ قَالَ قُلْتُ قَالَ اللَّهُ تَبَارَكَ وَتَعَالَى ‏{‏ وَأُولاَتُ الأَحْمَالِ أَجَلُهُنَّ أَنْ يَضَعْنَ حَمْلَهُنَّ ‏}‏ فَقَالَ إِنَّمَا ذَلِكَ فِي الطَّلاَقِ ‏.‏ فَقَالَ أَبُو هُرَيْرَةَ أَنَا مَعَ ابْنِ أَخِي ‏.‏ يَعْنِي أَبَا سَلَمَةَ ‏.‏ فَأَرْسَلَ غُلاَمَهُ كُرَيْبًا فَقَالَ ائْتِ أُمَّ سَلَمَةَ فَسَلْهَا هَلْ كَانَ هَذَا سُنَّةً مِنْ رَسُولِ اللَّهِ صلى الله عليه وسلم فَجَاءَ فَقَالَ قَالَتْ نَعَمْ سُبَيْعَةُ الأَسْلَمِيَّةُ وَضَعَتْ بَعْدَ وَفَاةِ زَوْجِهَا بِعِشْرِينَ لَيْلَةً فَأَمَرَهَا رَسُولُ اللَّهِ صلى الله عليه وسلم أَنْ تَزَوَّجَ فَكَانَ أَبُو السَّنَابِلِ فِيمَنْ يَخْطُبُهَا ‏.‏