If a prayer that was not performed on time is made up later (qada), does this also mean that the sin of missing the…

Daily tasks, professions and crafts, working to provide for family members, and traveling for such purposes are not considered valid excuses for delaying prayer. The Qur’an states: “Men whom neither trade nor sale distracts from the remembrance of Allah, performing prayer, and giving zakat. They fear a day in which hearts and eyes will be overturned.” (an-Nur, 24/37)

Unless there is a legitimate excuse such as forgetting or oversleeping, deliberately delaying prayer and making it up later (qada) is a grave sin. Nevertheless, regardless of the reason, prayers missed at their prescribed times must be made up. A person who misses a prayer due to a legitimate excuse is not held accountable, and by performing the missed prayer later, is relieved of their obligation. The Prophet said: “Whoever forgets a prayer or sleeps through it, let him pray it when he remembers. There is no expiation for it other than this…” (Muslim, Masajid, 315-316 [684]; see also Bukhari, Mawaqit al-Salat, 37 [597])

A person who neglects or is lazy and thus fails to perform the prayer on time is absolved of the obligation by making up the missed prayer. However, to be freed from the sin of not performing the prayer on time, the person must repent. (Ibn Nujaym, al-Bahr, 2/85)

Source: T.C. Diyanet İşleri Başkanlığı, Din İşleri Yüksek Kurulu