Musannaf Ibn Abi Shaybah

Hazrat Ata, Hazrat Saeed bin Jubair, and Hazrat Mujahid said regarding the person who committed murder in the sacred months: Blood money (diyat) and an additional one-third of the blood money will be obligatory. And one of them said (the narrator says I think it was Hazrat Saeed bin Jubair who said): Whoever commits murder within the boundaries of the Haram, then one blood money and an additional one-third of the blood money will be obligatory.