It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Let not the Bedouins overpower you regarding the name of your (Isha) prayer (so that you also begin to call it "Atamah").
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 9659