Mukhtasar Bukhari (Abridged) 581 — Maghrib prayer remains three

Narrated Abdullah bin Umar (may Allah be pleased with them): I saw the Messenger of Allah (peace and blessings of Allah be upon him) that when he was in a hurry during a journey, he would delay the Maghrib prayer, then when he performed it, he would pray three rak'ahs, and after waiting for a short while, he would perform the Isha prayer and pray two rak'ahs, then he would say salam. And after Isha, he would not pray any voluntary prayer until he got up at midnight and performed the Tahajjud prayer.