And according to maliki madhab its not wajib to say the tasshahud and it was the opinion of Sa3id bin Musayyab and other from the 7 fuqaha. But I am going to tell him try to memorise the whole Fatiha inshaAllah. Thanks for your advice. Barak Allahu fik.
Then ask a Maliki about the fatiha, don't do patchwork in pillars of salaah.