It was narrated from Abu Sa'd bin Abu Fadalah Al-Ansari, who was one of the Companions, the Messenger of Allah P.B.U.H said: "When Allah assembles the first and the last on the Day of Recurrection, a day concerning which there is no doubt, a caller will cry out: 'Whoever used to associate anyone else in an action that he did for Allah, let him seek than reward from someone other than Allah, for Allah is so self- sufficient that He has no need of any associate." (Hasan)