Sayyiduna Shaddad bin Aws (may Allah be pleased with him) narrated that the Prophet (peace and blessings be upon him) said: "When Allah gathers the first and the last on a single plain, where the sight will reach all of them and the caller's voice will be heard by all, Allah will say: I am the best of partners. Every deed that was done for Me in the world in which there was also a partner with Me, I abandon it today, and today I will accept only what is sincere." Then he (peace and blessings be upon him) recited this verse: "Except the chosen servants of Allah." [Surah al-Saffat: 40] "So whoever hopes to meet his Lord, let him do righteous deeds and not associate anyone in the worship of his Lord." [Surah al-Kahf: 110]
Hadith Referenceالمعجم الكبير للطبراني / باب الشين / 7136