" لاَ تَغْلِبَنَّكُمُ الأَعْرَابُ عَلَى اسْمِ صَلاَتِكُمْ أَلاَ إِنَّهَا الْعِشَاءُ "
It was narrated that Ibn 'Umar said: "I heard the Messenger of Allah (ﷺ) say on the Minbar: 'Do not let the Bedouin make you change the name of your prayer; verily, it is 'Isha'.'"