Fardh Salaah commencing while one is performing his Sunnats
Q: If a person while performing four rakaats Sunnat of Zuhr stands up for the third rakaat when the Iqaamah commences, should he shorten his Salaah by returning to tashahhud in order to get the Takbeer-e-ula or should he complete his Salaah and miss the Takbeer-e-ula?