Ali bin Abu Talib reported,
reported that the Messenger of Allah ﷺ said, "No servant truly believes until he believes in four things: in Allah alone with no partner, that I am the Messenger of Allah, in the resurrection after death, and in divine decree."
Ibn Majah 81
Hasanحدثنا عبد الله بن عامر بن زرارة حدثنا شريك عن منصور عن ربعي
عن علي
رضي الله عنه قال قال رسول الله ﷺ لا يؤمن عبد حتى يؤمن بأربع بالله وحده لا شريك له وأني رسول الله وبالبعث بعد الموت والقدر
[Hasan] Reported by Tirmidhi, chapter on Qadr, section on what has been said that faith in qadr includes both its good and its evil, hadith no. 2145, from the hadith of Shubah from Mansur, with additional wording, and Ibn Hibban, Hakim, and Dhahabi graded it sahih. However, it contains a serious flaw. Rubai heard it from a man (from Banu Assad) who narrated from Ali with this wording. See Musnad Tayalisi, hadith no. 106, and Abu Yaala, hadith no. 376, and others. I was unable to identify this man, so the chain is daif. The hadith has corroborating narrations in Ibn Abu Asim's Sunnah, hadith no. 134, and elsewhere.