The Peak of Eloquence · Hadith 1466 (#Passage #275)
Chapter 52 | To various governors concerning prayers
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.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).