Jami` at-Tirmidhi 3037
جامع الترمذي#3037Da'ifNarrated Thuwair - Ibn Abi Fakhitah:from his father that 'Ali bin Abi Talib said: "There is no Ayah in the Qur'an more beloved to me than this Ayah: Verily Allah forgives not associating others with Him, but He forgives what is less than that for whomever He wills (4:)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirDaif Isnaad
Al-AlbaniDaif Isnaad
Zubair Ali ZaiDaif
In-book reference: 47:89