Is the hadith: "Whoever catches a unit (rak'ah) of the prayer before its time expires has caught the prayer" specific only to the sleeping person, or does it also include the one who is awake?

Whoever catches one unit (rak'ah) of the prayer before its time expires has caught the prayer, and it is considered a performance. This is based on the saying of the Prophet, peace and blessings be upon him: "Whoever catches one rak'ah of the prayer has caught the prayer." In this, the excused and the unexcused are equal, except that delaying the prayer is not permissible without an excuse.