Hadith #1820The Chapters on Divorce · Narrated by Abu Bakr bin Abi Shayba أبو بكر بن أبي شيبة, Ali bin Muhammad bin Ishaq al-Tanafasi علي بن محمد بن إسحاق الطنافسي, Habib bin Zayd bin Khallad حبيب بن زيد بن خلاد, Sahl bin Sa'd bin Malik, Shu'bah bin al-Hajjaj شعبة بن الحجاج, Umm 'Ammarah Nasaybah, Waki' bin al-Jarrah وكيع بن الجراح
the Messenger of Allah (ﷺ), said: “It is not permissible for a woman who believes in Allah and the Last Day to mourn for any deceased person for more than three days, except for her husband.”