Al-Sha'bi (may Allah have mercy on him) said that Sayyiduna Ali (may Allah be pleased with him) delivered a sermon on the pulpit in Kufah and said: He has no connection with us who does not believe in divine decree, its good and its bad. [Da'if (weak)]
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 20877