Musannaf Ibn Abi Shaybah 3023 — How the tashahhud in prayer is recited

Habib bin al-Shahid says: Muhammad (Ibn Sirin) was asked about the tashahhud, and he said: The words of the tashahhud are: All verbal worship, physical worship and financial worship are for Allah. Then he said: Sayyiduna Ibn Abbas (may Allah be pleased with them both) used to add 'al-barakat' (the blessings) to them.