Those who used to say: if one forgets to recite in the first two rakahs, he recites in the last two

Sayyiduna Abdullah bin Hanzalah bin al-Rahib (may Allah be pleased with him) said: Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) led us in prayer and forgot to recite in the first rak'ah. When he stood for the second rak'ah, he recited Surah al-Fatihah and a surah twice. When he had completed his prayer, he performed two prostrations.

Alqamah forgot to recite in the first two rak'ahs, so he recited in the last two.

Ibrahim said: If one forgets to recite in the first two rak'ahs, he should recite in the last two.