Completing two missed Rakaats in Maghrib

A Masbooq refers to a person who has joined the Imaam in Salaah after missing one or more Rakaats of Salaah. After the Imaam makes his second Salaam, a Masbooq will stand up and complete his missed Rakaats of Salaah.

In terms of Qiraat (recitation), a Masbooq will recite Surah Faatiha and a Surah in the first two Rakaats but only Surah Faatiha in the third/Fourth Rakaat.

In terms of Qa’dah (Tashahhudd position), a Masbooq will count his Rakaats from the time he joined the Imaam in Salaah. Hence, if he read one Rakaat with the Imaam, then the first Rakaat that he reads on his own is added on and counted as the second Rakaat. Therefore, after the first Rakaat that he reads on his own, he will sit for Tashahhud.

In the above enquired situation, the Masbooq will stand up and complete the two missed Rakaats of Maghrib Salaah in the following manner: In both Rakaats, he will recite Surah Faatiha and a Surah. He will sit for Tashahhud in the first Rakaat (as it is counted as Rakaat no.2) and will complete the Salaah with the final Qa’dah in the second Rakaat as normal. (Tahtaawi Ala Maraaqil Falaah 1/309)

And Allah Ta’ala Knows Best