What does the one who joins the prayer late do when the imam is in the final tashahhud, and the latecomer is in his first tashahhud?

Question:
He says: Honorable Shaykh, may Allah grant you success, is this formulation in the first tashahhud valid: "The blessings, the pure prayers, the good words are for Allah"?

Answer:
Yes, this was reported from Ibn 'Abbas (may Allah be pleased with him). This is the tashahhud of Ibn 'Abbas. The well-known tashahhud, which people follow and practice, is the tashahhud of Ibn Mas'ud.