Narrated `Ikrima: Ibn `Abbas said to me and to his son `Ali, "Go to Abu Sa`id and listen to what he narrates." So we went and found him in a garden looking after it. He picked up his Rida', wore it and sat down and started narrating till the topic of the construction of the mosque reached. He said, "We were carrying one adobe at a time while `Ammar was carrying two. The Prophet saw him and started removing the dust from his body and said, "May Allah be Merciful to `Ammar. He will be inviting them (i.e. his murderers, the rebellious group) to Paradise and they will invite him to Hell-fire." `Ammar said, "I seek refuge with Allah from affliction."

Narrated `Ikrima: that Ibn `Abbas told him and `Ali bin `Abdullah to go to Abu Sa`id and listen to some of his narrations; So they both went (and saw) Abu Sa`id and his brother irrigating a garden belonging to them. When he saw them, he came up to them and sat down with his legs drawn up and wrapped in his garment and said, "(During the construction of the mosque of the Prophet) we carried the adobe of the mosque, one brick at a time while `Ammar used to carry two at a time. The Prophet passed by `Ammar and removed the dust off his head and said, "May Allah be merciful to `Ammar. He will be killed by a rebellious aggressive group. `Ammar will invite them to (obey) Allah and they will invite him to the (Hell) fire."