Umm Salama bint Abu Umaya reported,
Umm Salama said, "Some men go out to fight while women do not, and we receive only half the inheritance."So Allah 
revealed, "And do not wish for that by which Allah has made some of you exceed others" [Nisa 4:32].Mujahid said that concerning her was also revealed, "Indeed, the Muslim men and Muslim women..." [Ahzab 33:35].Umm Salama was the first woman to arrive in Madinah as an emigrant.
Tirmidhi 3022
Sahihحدثنا ابن أبي عمر حدثنا سفيان عن ابن أبي نجيح عن مجاهد
عن أم سلمة
أنها قالت يغزو الرجال ولا تغزو النساء وإنما لنا نصف الميراث فأنزل الله تبارك وتعالى {ولا تتمنوا ما فضل الله به بعضكم على بعض} قال مجاهد وأنزل فيها {إن المسلمين والمسلمات} وكانت أم سلمة أول ظعينة قدمت المدينة مهاجرة
Sourcing, [Its chain is daif] Ahmad narrated it, 6/322, from Sufyan bin Uyayna with this chain, and he stated explicitly that he had heard it directly. Sufyan Thawri also narrated it following him, and Hakim graded it sahih according to the standard of the two Shaykhs, provided that Mujahid had heard from Umm Salama, 2/305, 306, and Dhahabi agreed with him.Ibn Abu Najeeh was a mudallis, and he narrated with "an" phrasing.