When a pregnant widow gives birth, it is permissible for her to remarry Sunan Ibn Majah 2030
Arabic hadith text
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ، عَنْ مُسْلِمٍ، عَنْ مَسْرُوقٍ، عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ، قَالَوَاللَّهِ لَمَنْ شَاءَ لاَعَنَّاهُ لأُنْزِلَتْ سُورَةُ النِّسَاءِ الْقُصْرَى بَعْدَ أَرْبَعَةِ أَشْهُرٍ وَعَشْرًا .
Translation
It was narrated that' Abdullah bin Mas'ud said
"By Allah, for those who would like to go through the process of praying for Allah's curse to be upon the one who is wrong, the shorter Surah concerning women[l] was revealed after (the Verses[2] which speak of the waiting period of) four months and ten (days)." [1] (65:40), [2] (2:234)