Hamnah Bint Jahsh (may Allah be please with her) was one of the female companions of the beloved Prophet of Islam; Prophet Muhammad (may the peace and blessings of Allah be upon him).
She was the daughter of Jahsh ibn Riyab, an immigrant to Mecca from the Asad tribe, and Umama bint Abdulmuttalib, a member of the Hashim clan of the Quraysh tribe who was the Prophet Muhammad's aunt (peace and blessings of Allah be upon him). Hence Hamnah was a first cousin of Prophet Muhammad (may the peace and blessings of Allah be upon him) and Ali, a sister of Abd-Allah ibn Jahsh, Ubayd-Allah ibn Jahsh and Zaynab bint Jahsh, and a niece of Hamza ibn ‘Abd al-Muttalib (may Allah be pleased with them). She was married to Mus`ab ibn `Umair when she converted to Islam. She migrated to Medina, and when the women of Ansar and Muhajirun took the oath of allegiance at the hands of Prophet Muhammad (may the peace and blessings of Allah be upon him), she was among them.
She participated in the battle of Uhud, providing water and treating the injured. Her husband Mus’ab was killed in this battle. When the Prophet Muhammad (may the peace and blessings of Allah be upon him) returned from Uhud, the women began to ask after the battle casualties. He said, "O Hamnah! Expect that your brother Abdullah will be rewarded!" She replied, "To Allah we belong and to him we shall return. May Allah's mercy be upon him and may Allah forgive him." Then the Prophet Muhammad (may the peace and blessings of Allah be upon him) said, "Expect that your uncle, Hamza ibn ‘Abd al-Muttalib, will be rewarded!" Again, she remained calm and gave the same reply. He then said, "O Hamnah! Expect that your husband, Mus`ab ibn `Umair, will be rewarded!" Upon this, she shrieked and wailed. The Prophet Muhammad (may the peace and blessings of Allah be upon him) remarked, "The woman's husband holds a special place with her, as you can see from her self-control at the death of her brother and her uncle and her shrieking over her husband.”
Hamnah then married the prominent Muslim general Talha ibn Ubayd-Allah (may Allah be pleased with them). Talha was amongst the Asharah Mubasharah, the ten people to whom the holy Prophet Muhammad (may the peace and blessings of Allah be upon him) promised Paradise while they were still alive. Hamnah had two children for Talha, Muhammad ibn Talha, known as Sajjad, and Imran.
The year of Hamnah's death is unknown; however, she outlived her sister Zaynab, who died in the year 20 A. H. or 641 CE. (https://en.wikipedia.org/wiki/Hammanah_bint_Jahsh).
During the incidence of slander against Aisha, Hamnah participated in the rumor spreading, although her sister Zainab decided not to. With many of these past women we only have a little bit of information. We don’t know much but what we do know gives us an important insight. They were human. Sometimes when we think of the Sahaba we think of them as flawless great Muslims. Great Muslims they were, but flawless they were not. Her participating in the rumors or not being able to have as much strength when she lost her husband shows that she was just like one of us. That is why the Quran and Sunnah are so timeless. They appeal and address issues of human nature, which never change with time.( http://mosaicofmuslimwomen.com).