It was narrated that Ibn 'Umar said:"I heard the Messenger of Allah say: 'Do not let the Bedouin make you change the name of your prayer. It is the 'Isha', and they bring their camels in and milk them at nightfall
Hadith No. 704
Sunan Ibn Majah
Gradings:
Al-Albani:
Sahih
Muhammad Fouad Abd al-Baqi:
Sahih
Shuaib Al Arnaut:
Sahih
Zubair Ali Zai:
Sahih Muslim