Musnad Abu Ya'la al-Mawsili 209:81

Daud narrated to us, Sufyan narrated to us, from Ibn Abi Najih, from Mujahid, who said: Umm Salamah said: "O Messenger of Allah, men go on military expeditions and we do not go on military expeditions, and we only have half of the inheritance." So Allah, the Mighty and Majestic, revealed: "And do not wish for that by which Allah has made some of you exceed others." He said: And this verse was revealed concerning her: "Indeed, the Muslim men and Muslim women, the believing men and believing women..." to the end of the verse.