وَعَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا
قَالَتْ: كَانُوا يُصَلُّونَ الْعَتَمَةَ فِيمَا بَيْنَ أَنْ يغيب لاشفق إِلَى ثلث اللَّيْل الأول
Aishah said that they used to pray the night prayer at any time after the ending of the twilight until a third of the night had passed.
Mishkat al-Masabih 554, Book 5, Prayer, Hadith 32. 1 min read