Sunan an-Nasa'i 529
سنن النسائي#529SahihIt was narrated that An-Nu'man bin Bashir said:"By Allah, I am the most knowledgeable of people about the time of the 'Isha' prayers. The Prophet (ﷺ) used to pray it when the moon set on the third night of the month
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 6:36