At the end of his prayer, how may sitting for at-tashahud are expected of someone who misses two rak?ats in a congregational sal? al-Maghrib?

Answer Details

If someone misses two rak'ats in a congregational Salah al-Maghrib, they are expected to perform two rak'ats of Sujood As-Sahw (prostration of forgetfulness) at the end of their Salah. During the Tashahhud, they would sit only once, just like in any other Salah. Therefore, the answer is "one."