Muwatta Malik, Book 29, Hadith 73 (USC-MSA) ⓘ

Yahya related to me from Malik that he had heard that Umar ibn al-Khattab, Abdullah ibn Umar, Abdullah ibn Masud, Salim ibn Abdullah, al-Qasim ibn Muhammad, Ibn Shihab,and Sulayman ibn Yasar all said, "If a man has vowed to divorce his wife before marrying her and then he breaks his vow, divorce is obligatory for him when he marries her."

وَحَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ عُمَرَ بْنَ الْخَطَّابِ، وَعَبْدَ اللَّهِ بْنَ عُمَرَ، وَعَبْدَ اللَّهِ بْنَ مَسْعُودٍ، وَسَالِمَ بْنَ عَبْدِ اللَّهِ، وَالْقَاسِمَ بْنَ مُحَمَّدٍ، وَابْنَ، شِهَابٍ وَسُلَيْمَانَ بْنَ يَسَارٍ كَانُوا يَقُولُونَ إِذَا حَلَفَ الرَّجُلُ بِطَلاَقِ الْمَرْأَةِ قَبْلَ أَنْ يَنْكِحَهَا ثُمَّ أَثِمَ إِنَّ ذَلِكَ لاَزِمٌ لَهُ إِذَا نَكَحَهَا ‏.‏

Yahya related to me from Malik that he had heard that Abdullah ibn Masud said that there was nothing binding on someone who said, "Every woman I marry is divorced," if he did not name a specific tribe or woman. Malik said, "That is the best of what I have heard." Malik said about a man saying to his wife, "You are divorced, and every woman I marry is divorced," or that all his property would be sadaqa if he did not do such-and-such, and he broke his oath: "As for his wives, it is divorce as he said, and as for his statement, 'Every woman I marry is divorced', if he did not name a specific woman, tribe, or land, or such, it is not binding on him and he can marry as he wishes. As for his property, he gives a third of it away as sadaqa."

وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ عَبْدَ اللَّهِ بْنَ مَسْعُودٍ، كَانَ يَقُولُ فِيمَنْ قَالَ كُلُّ امْرَأَةٍ أَنْكِحُهَا فَهِيَ طَالِقٌ إِنَّهُ إِذَا لَمْ يُسَمِّ قَبِيلَةً أَوِ امْرَأَةً بِعَيْنِهَا فَلاَ شَىْءَ عَلَيْهِ ‏.‏ قَالَ مَالِكٌ وَهَذَا أَحْسَنُ مَا سَمِعْتُ ‏.‏ قَالَ مَالِكٌ فِي الرَّجُلِ يَقُولُ لاِمْرَأَتِهِ أَنْتِ الطَّلاَقُ وَكُلُّ امْرَأَةٍ أَنْكِحُهَا فَهِيَ طَالِقٌ وَمَالُهُ صَدَقَةٌ إِنْ لَمْ يَفْعَلْ كَذَا وَكَذَا فَحَنِثَ قَالَ أَمَّا نِسَاؤُهُ فَطَلاَقٌ كَمَا قَالَ وَأَمَّا قَوْلُهُ كُلُّ امْرَأَةٍ أَنْكِحُهَا فَهِيَ طَالِقٌ فَإِنَّهُ إِذَا لَمْ يُسَمِّ امْرَأَةً بِعَيْنِهَا أَوْ قَبِيلَةً أَوْ أَرْضًا أَوْ نَحْوَ هَذَا فَلَيْسَ يَلْزَمُهُ ذَلِكَ وَلْيَتَزَوَّجْ مَا شَاءَ وَأَمَّا مَالُهُ فَلْيَتَصَدَّقْ بِثُلُثِهِ ‏.‏