(2) باب فِي الْمَوَاقِيتِ
'Abd Allah b. 'Amr reported the Prophet (ﷺ) as saying:
The time of the Zuhr prayer is as along as the time of the 'Asr prayer has not come; the time of the Asr prayer is as long as the sun has not become yellow ; the time of the Maghrib prayer is as long as the twilight has not ended; the time of the Isha prayer is up to midnight; and the time of the Fajr prayer is as long as the sun has not risen.
Reference: Sunan Abi Dawud 396
In-book reference: Book 2, Hadith 6
English translation: Book 2, Hadith 396