(13) باب النَّهْىِ أَنْ يُقَالَ صَلاَةُ الْعَتَمَةِ
It was narrated from Abu Hurairah that:
The Prophet said: "Do not let the Bedouins make you change the name of your prayer." Ibn Harmalah added: "Rather it is the 'Isha', but they say the 'Atamah because they bring their camels in for milking at that time (when it is dark)." (ES)
Reference (ES): Sunan Ibn Majah 705 (ES)
In-book reference (ES): Book 2, Hadith 39 (ES)
English translation (ES): Vol. 1, Book 2, Hadith 705 (ES)