Hadith 8:2480
Abu Bakr narrated to us, he said: Ali ibn Mushir narrated to us, from al-Shaybani, from Yazid ibn al-Asamm, from Ibn Abbas, he said: A man asked him and said: "My father died and he never performed Hajj, so should I perform Hajj on his behalf?" He said: "Yes, for if you do not add good to him, you will not add evil to him."
حدثنا أبو بكر قال حدثنا علي بن مسهر عن الشيباني عن يزيد بن الأصم عن بن عباس قال سأله رجل فقال إن أبي مات ولم يحج قط أفأحج عنه قال نعم فإنك إن لم تزده خيرا لم تزده شرا