Ahmad reported from Sahl bin Abu Hathma's Hadith that it was the first ever husband and wife separation for compensation in Islam.

وَلِأَحْمَدَ : مِنْ حَدِيثِ سَهْلِ بْنِ أَبِي حَثْمَةَ : { وَكَانَ ذَلِكَ أَوَّلَ خُلْعٍ فِي اَلْإِسْلَامِ } [1]‏ .‏