Abu Hurairah (May Allah be pleased with him) said:
The Messenger of Allah (ﷺ) said, "Almighty Allah says, 'I am the One Who is most free from want of partners. He who does a thing for the sake of someone else beside Me, I discard him and his polytheism.."[Muslim].
App reference: Book 18, Hadith 106
Arabic/English book reference: Book 18, Hadith 1616