Abdullah bin Abbas reported,

The Prophet ﷺ rose during the night to pray, so I got up, performed ablution, and stood on his left. He pulled me and drew me over to stand on his right. He prayed thirteen rakahs, and his standing in each of them was equal in length.

Ahmad 2276

Sahih

حدثنا عفان حدثنا وهيب حدثنا عبد الله بن طاوس عن عكرمة بن خالد

عن ابن عباس

أن النبي ﷺ قام من الليل يصلي فقمت فتوضأت فقمت عن يساره فجذبني فجرني فأقامني عن يمينه فصلى ثلاث عشرة ركعة قيامه فيهن سواء

أحمد 2276صحيح
Contents
Reference
Commentary
Ayat
Collection
Musnad Ahmad
Book
Abdullah bin Abbas bin Abdul-Muttalib
Numbering
Darussalam 2276