وَلِلْمُطَلَّقَـٰتِ مَتَـٰعٌۢ بِٱلْمَعْرُوفِ ۖ حَقًّا عَلَى ٱلْمُتَّقِينَ Qur’an Al-Baqara (2:241)Walilmutallaqati mataAAun bialmaAAroofi haqqan AAala almuttaqeena
This obviously relates to women who are divorced without any legal fault on their part. The amount of alimony - payable unless and until they remarry - has been left unspecified since it must depend on the husband's financial circumstances and on the social conditions of the time.