‘Abdullāh ibn Mas‘ūd (may Allah be pleased with him) reported: “The Messenger of Allah (may Allah's peace and blessings be upon him) said: "Whoever dies while invoking anything other than Allah as a rival will enter Hell."
شرح الحديث :
In this Hadīth, the Prophet (may Allah's peace and blessings be upon him) tells us that if someone devotes something to other than Allah, when it should be devoted to Him alone, and he dies persisting in doing so, his final consequence will be the Hellfire.