Sahih Muslim Book 004, Hadith Number 1344.

Chapter : Commencement of the time for the evening prayer is immediately after sunset.

Ibn 'Umar said: The Messenger of Allah (may peace be upon him) said: Let the bedouin not gain upper band over you In regard to the name of your prayer, i.e. night prayer, for it is mentioned 'Isha in the Book of Allah (i.e. the Qur'an). (The bedouin call it 'Atama because) they make delay in milling their she-camels.

Related Hadith(s)