1466. hadíth
وَصَلُّوا بِهِمُ الْعِشَاءَ حِينَ يَتَوَارَى الشَّفَقُ إِلَى ثُلُثِ اللَّيْلِ.
Say the ‘ishā’ (night) prayers with them when twilight disappears and upto one third of the night.
Nahj al-Balāgha
al-Sharīf al-Raḍī
Letters
To various governors concerning prayers
A fordítás angol nyelvű (Sayed Ali Raza), forrás: Thaqalayn.net.