"Whoever catches up with a prostration of Subh before the sun rises, then he has caught up with it; and whoever catches up with a prostration of 'Asr before the sun sets, then he has caught up with it."
Sunan an-Nasa'i Book 6, Hadith 57
← Previous Hadith "The more you delay Fajr, the greater the reward."

Sunan an-Nasa'i Book 6, Hadith 56 Next Hadith → "Whoever catches up with a Rak'ah of Fajr before the sun rises, then he has caught up with it; and whoever catches up with a Rak'ah of 'Asr before the sun sets, then he has caught up with it."

Sunan an-Nasa'i Book 6, Hadith 58