Hadith 631
وَعَنِ ابْنِ عُمَرَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «لَا يَغْلِبَنَّكُمُ الْأَعْرَابُ على اسْم صَلَاتكُمْ الْمغرب» . قَالَ: «وَتقول الْأَعْرَاب هِيَ الْعشَاء»
Ibn ‘Umar reported God’s Messenger as saying, "Do not let the Bedouin take away from you the name of your prayer al-maghrib (sunset) which the Bedouin call al-'isha (evening); and do not let the Bedouin take away from you the name of your prayer al-‘isha,