Mukhtasar Bukhari (Abridged) 346 — When does Maghrib time begin?

Sayyiduna Rafi' bin Khadij (may Allah be pleased with him) says that we used to offer the Maghrib prayer with the Noble Prophet (peace and blessings of Allah be upon him), then each of us would return (after the prayer) at such a time that he could see the places where his arrows had fallen.