Musannaf Ibn Abi Shaybah 20433 — A woman's mourning for her husband

It is narrated from Sayyidah Umm Atiyyah (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) said: "It is not permissible to mourn for any dead person for more than three days, except that a woman shall mourn her husband for four months and ten days. She shall not wear dyed clothing, except that she may wear a garment of 'asb cloth. She shall not apply kohl nor use perfume, except that when she nears her purification she may use a little of the perfumes qust and azfar."