Musnad Ahmad

It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that once a man asked the Prophet (peace and blessings be upon him) about the timings of prayer. The Prophet (peace and blessings be upon him) said: Pray with me. So, he performed the Fajr prayer at the time of dawn, performed the Zuhr prayer after the sun had passed its zenith, performed the Asr prayer when the shadow of everything became equal to its length, performed the Maghrib prayer after sunset, and performed the Isha prayer after the twilight had disappeared. Then, on the next day, he performed the Fajr prayer when there was much brightness, performed the Zuhr prayer when the shadow of everything became equal to its length, then performed the Asr prayer when the shadow of everything became twice its length, then performed the Maghrib prayer before the twilight disappeared, then came for the Isha prayer when half or a third of the night had passed.