It is narrated from the Mother of the Believers, Sayyidah Umm Salamah (may Allah be pleased with her), that the daughter of Nu'aym bin Abdullah al-Adawi came to the Prophet (peace and blessings be upon him) and said: "My daughter's husband has died; she was married to al-Mughirah al-Makhzumi, and she has a complaint in her eye. May she apply kohl?" He (peace and blessings be upon him) said: "No." Then she remained silent for a while, and then said to him again: "She has a complaint in her eye; may she apply kohl?" He (peace and blessings be upon him) said: "No." Then he (peace and blessings be upon him) said: "It is not lawful for a woman to mourn for more than three days, except for a husband (whom she will mourn)."
Imam al-Tabarani (may Allah have mercy on him) said: "Only Abu al-Aswad narrated this hadith from al-Qasim, and Ibn Lahi'ah is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 8628
Hadith Takhrij«أخرجه الطحاوي فى «شرح معاني الآثار» برقم: 4569، والطبراني فى «الكبير» برقم: 818، 983»