The Book on Salat (Prayer)
2/9. Chapter:
What Has Been Related About The Time For The Last Isha Prayer
Jami at-Tirmidhi
حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ الْمَلِكِ بْنِ أَبِي الشَّوَارِبِ، حَدَّثَنَا أَبُو عَوَانَةَ، عَنْ أَبِي بِشْرٍ، عَنْ بَشِيرِ بْنِ ثَابِتٍ، عَنْ حَبِيبِ بْنِ سَالِمٍ، عَنِ النُّعْمَانِ بْنِ بَشِيرٍ، قَالَ أَنَا أَعْلَمُ النَّاسِ، بِوَقْتِ هَذِهِ الصَّلاَةِ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُصَلِّيهَا لِسُقُوطِ الْقَمَرِ لِثَالِثَةٍ " .
An-Nu'man bin Bashir said: "I Am The Most Knowledgeable Among The People About The Prescribed Time Of This Prayer: Allah'S Messenger Would Pray It When The Moon Set On The Third (Of The Month)."
Reference : Jami` at-Tirmidhi 165In-book reference : Book 2, Hadith 17English translation : Vol. 1, Book 2, Hadith 165