Arabic (Original)
حَدَّثَنَا يَعْقُوبُ وَسَعْدٌ قَالَا حَدَّثَنَا أَبِي عَنْ مُحَمَّدِ بْنِ إِسْحَاقَ قَالَ حَدَّثَنِي عَبْدُ الرَّحْمَنِ بْنُ هُرْمُزَ الْأَعْرَجُ أَنَّ الْعَبَّاسَ بْنَ عَبْدِ اللَّهِ بْنِ عَبَّاسٍ أَنْكَحَ عَبْدَ الرَّحْمَنِ بْنَ الْحَكَمِ ابْنَتَهُ وَأَنْكَحَهُ عَبْدُ الرَّحْمَنِ ابْنَتَهُ وَقَدْ كَانَا جَعَلَا صَدَاقًا فَكَتَبَ مُعَاوِيَةُ بْنُ أَبِي سُفْيَانَ وَهُوَ خَلِيفَةٌ إِلَى مَرْوَانَ يَأْمُرُهُ بِالتَّفْرِيقِ بَيْنَهُمَا وَقَالَ فِي كِتَابِهِ هَذَا الشِّغَارُ الَّذِي نَهَى عَنْهُ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ.
English Translation
Ya'qub and Sa'd narrated to us, saying: our father narrated to us from Muhammad ibn Ishaq, who said: 'Abd al-Rahman ibn Hurmuz al-A'raj narrated to me that al-'Abbas ibn 'Abdullah ibn 'Abbas married his daughter to 'Abd al-Rahman ibn al-Hakam, and 'Abd al-Rahman married his own daughter to him in exchange, and they had made this the dowry between them. Mu'awiya ibn Abi Sufyan, being caliph, wrote to Marwan ordering him to separate the two, saying in his letter: 'This is the shighar (exchange marriage) which the Messenger of Allah, peace and blessings be upon him, forbade.'