In one narration the words are: "He will not taste the taste of faith; you cannot reach the reality of knowledge of Allah Almighty until you believe in the decree."
(Allamah al-Haythami says:) I say:
Al-Tirmidhi recorded this report as a mawquf narration (halted at the Companion) and in abridged form.
Al-Tabarani recorded it in al-Mu'jam al-Kabir with various chains and also in al-Mu'jam al-Awsat; the chain of one of the two contains Uthman bin Abi al-Atikah, who is da'if (weak), though Duhaym declared him thiqah (trustworthy); the rest of its narrators are thiqat (trustworthy), and some of its narrators have been criticised.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب القدر / 11838