Hadith 8:2484
15121. Abu Bakr narrated to us, he said: Waki' narrated to us, from Sufyan, from Aslam al-Minqari, from 'Ata', who said: "Hajj is performed on behalf of the deceased, even if he did not bequeath it."
حدثنا أبو بكر قال حدثنا وكيع عن سفيان عن أسلم المنقري عن عطاء قال يحج عن الميت وإن لم يوص