Sayyiduna al-Dahhak bin Qays (may Allah be pleased with him) states: The Prophet (peace and blessings be upon him) said: "Indeed Allah Almighty says: I am the best of partners; whoever associates anyone with Me as a partner, that deed will be for My partner. (The Prophet (peace and blessings be upon him) said:) O people! Make your deeds sincerely for Allah Almighty, for Allah Almighty accepts only those deeds which are sincerely for Him. And do not say: This is for Allah Almighty and for the bond of kinship, for it will be counted for the bond of kinship and nothing of it will be for Allah Almighty. And do not say: This is for Allah Almighty and for you people, for it will be counted for you people and there will be nothing in it for Allah Almighty."
Al-Bazzar recorded it from his teacher Ibrahim bin Mujashshir, whom Ibn Hibban and others declared thiqah (trustworthy), and there is weakness in him; the rest of its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الزهد / 17652