Musannaf Ibn Abi Shaybah 5951 — A man who misses a rakah in the days

Al-Hasan and Ibn Sirin were asked about a man who misses a rak'ah during the days of Tashriq. Ibn Sirin said: He should make it up, then say the takbirs. Al-Hasan said: He should say the takbirs, then make up the rak'ah.