The 'Isha' prayer is two rak'ahs, and he would not pray after the Friday prayer until he had departed, then he would pray two rak'ahs (1).

1253 - Musaddad narrated to us, Yahya narrated to us, from Shu'bah, from Ibrahim ibn Muhammad ibn al-Muntashir, from his father, from 'A'ishah: that the Prophet, peace and blessings be upon him, would not abandon four rak'ahs before the Zuhr prayer, and two rak'ahs before the dawn prayer (2).

290 - Chapter: The two rak'ahs of Fajr

1254 - Musaddad narrated to us, Yahya narrated to us, from Ibn Jurayj, 'Ata' narrated to me, from 'Ubayd ibn 'Umayr--------------------------------------------
(1) Its chain of transmission is authentic.
It is in "Al-Muwatta'" 1/166, and via another route it was recorded by al-Bukhari (937), Muslim (882), and al-Nasa'i in "Al-Kubra" (342) and (1757). It is abridged by some of them.
It was also recorded in full and abridged by al-Bukhari (1172) and (1180), Muslim (882), Ibn Majah (1130), al-Tirmidhi (427), (432), (435), and (529), and al-Nasa'i (377), (503), (1758), and (1759) via multiple routes from Nafi', from him.
It is in "Musnad Ahmad" (5296), and "Sahih Ibn Hibban" following (2479).
See also what preceded under numbers (1127) and (1132).

(2) Its chain of transmission is authentic.
It was recorded by al-Bukhari (1182) and al-Nasa'i in "Al-Kubra" (1455) via the route of Shu'bah, with this chain of transmission.
It was also recorded by al-Nasa'i (1454) via the route of 'Uthman ibn 'Umar, from Shu'bah, from Ibrahim ibn Muhammad, from his father, from Masruq, from 'A'ishah, adding Masruq to the chain. Al-Nasa'i said: No one followed him in his statement "from Masruq."
See also what preceded (1251).