It wasnarrated from Shaddad bin Aws that the Messenger of Allah(ﷺ) said:
"The thing that I fear most for my nation is associatingotherswith Allah. I do not say that they will worship the sun or themoonor idols, but deeds done for the sake of anyone other than Allah,andhidden desires." (FR)
English reference (FR): Vol. 5, Book 37, Hadith 4205 (FR)
Arabic reference (FR): Book 37, Hadith 4345 (FR)