ʿUyūn akhbār al-Riḍā
Hadith 262262 - وَبِإِسْنادِهِ عَنْ عَلِيِ عَلَيْهِ السَّلامُ قالَ: أَنَاعَبْدُ اللَّه، وَأَخُو رَسُولِهِ، لا يَقُولَها بَعْدي إِلاّ كَذَّابٌ.
31-262 According to the same documentation, on the authority of Ali (a.s.), “I am God’s servant and the brother of His Messenger (a.s.). Whoever claims anything else is a liar.”