Musannaf Ibn Abi Shaybah

Hazrat Khulaf bin Houshab says: Jibreel (peace be upon him), or he says: some angel, came to Hazrat Yusuf (peace be upon him) in the prison. Hazrat Yusuf (peace be upon him) said: O fragrant and pure angel! Tell me about Yaqub (peace be upon him). Or he said: What was the deed of Yaqub (peace be upon him)? The angel replied: His eyesight had gone. Hazrat Yusuf (peace be upon him) then asked: How much grief did he have? The angel replied: As much as the grief of seventy mothers whose children have been lost. Hazrat Yusuf (peace be upon him) then asked: What is the reward for him (for this)? The angel replied: (For him) the reward is equal to that of one hundred martyrs.