Hafsah bint Sirin (may Allah have mercy on her) narrates from Sayyidah Umm Atiyyah (may Allah be pleased with her), who said: The Messenger of Allah (peace and blessings be upon him) commanded us to bring out, on the day of Eid al-Fitr, the young unmarried girls, the women kept in seclusion and the menstruating women. As for the menstruating women, they would keep away from the prayer but would attend the good and the supplication of the Muslims. A woman said: O Messenger of Allah! What do you think if one of us does not have an outer cloak? He (peace and blessings be upon him) said: "Let her sister clothe her with her cloak."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21590