Al-Mu'jam al-Awsat 2917 — Al-Bahzi (may Allah have mercy on him)

Al-Bahzi (may Allah have mercy on him) relates: I asked Sayyiduna al-Husayn bin Ali (may Allah be pleased with them both) about the tashahhud of Sayyiduna Ali (may Allah be pleased with him), and he said: "It is the very tashahhud of the Prophet (peace and blessings be upon him)." I said: "Tell me the tashahhud of Sayyiduna Ali (may Allah be pleased with him) which was the tashahhud of the Messenger of Allah (peace and blessings be upon him)." So he said: 'At-tahiyyatu lillahi was-salawatu wat-tayyibatu wal-ghadiyatu war-ra'ihatu waz-zakiyatu wan-na'imatu as-sabighatu at-tahiratu lillah' (All verbal worship, all prayers and all pure deeds of charity are for Allah; and the remembrances of morning and evening, and pure, pleasant, abundant and purified blessings are for Allah).
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Abdullah bin Ata except Amr."