english: But it has already been revealed to thee, - as it was to those before thee, - "If you were to join (gods with Allah), truly fruitless will be your work (in life), and you will surely be in the ranks of those who lose (all spiritual good)" (Sura al-Zumar 39:65).
non_english: [Al-An'am: 88]Briathar Allah Subhanahu wa Ta'ala:ولقد أوحي إليك وإلى الذين من قبلك لئن أشركت ليحبطن عملك ولتكونن من الخاسرين"Agus léirigh verily a thabhairt duit agus go (Prophets) roimh duit: 'Má ascribe ye (Allah), beidh sé bhaint amalmu agus surely a bheith i measc na cailliúnaithe.'"