Jabir bin Samura reported,

The Messenger of Allah ﷺ used to delay the night prayer.In another narration, the Messenger of Allah ﷺ used to perform the prayers in a manner similar to your prayers, except that he would delay the late night prayer somewhat past the time you pray it, and he kept his prayer brief.In another narration, he would shorten it.

Azami 1833

Sahih

عن جابر بن سمرة قال

كان رسول الله ﷺ يؤخر صلاة العشاء الآخرة. وفي رواية: كان رسول الله ﷺ يصلي الصلوات نحوا من صلاتكم، وكان يؤخر العتمة بعد صلاتكم شيئا، وكان يخف الصلاة، وفي رواية: يخفف.

الأعظمي 1833صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Prayer
Chapter
Prayer times
Section
Isha prayer, its time and delaying it
Numbering
Jami al-Kamil 1833 (2nd edition)
Azami 1833