Musannaf Ibn Abi Shayba 18:827

Abu Bakr narrated to us, he said: Yahya bin Zakariya bin Abi Za'idah narrated to us, from Yahya bin Sa'id, from al-Zuhri, from Sa'id bin al-Musayyib, who said: Umar stood in Mina and asked the people, "Who among you has knowledge regarding the inheritance of a woman from the blood money (diya) of her husband?" Al-Dahhak bin Sufyan al-Kilabi stood up and said, "Enter your tent so that I may inform you." He went to him and said, "The Messenger of Allah (peace be upon him) wrote to me that I should grant the wife of Ashyam al-Dababi an inheritance from the blood money of her husband."