I came to the Messenger of Allah ﷺ in the last part of the night and prayed behind him. He took my hand and pulled me forward, placing me beside him. When the Messenger of Allah ﷺ turned to his prayer, I withdrew. The Messenger of Allah ﷺ continued his prayer, and when he finished he said to me, "What is the matter with me, that I place you beside me and you withdraw?"I replied, "Messenger of Allah, is it fitting for anyone to pray beside you when you are the Messenger of Allah, to whom Allah has granted what He has granted?"This pleased him, and he supplicated to Allah for me, asking that He increase me in knowledge and understanding.Then I saw the Messenger of Allah ﷺ sleep until I heard him breathing deeply. Then Bilal came to him and said, "Messenger of Allah, the prayer." He rose and prayed without renewing his ablution.
حدثنا عبد الله بن بكر حدثنا حاتم بن أبي صغيرة أبو يونس عن عمرو بن دينار أن كريبا أخبره أن
أتيت رسول الله ﷺ من آخر الليل فصليت خلفه فأخذ بيدي فجرني فجعلني حذاءه فلما أقبل رسول الله ﷺ على صلاته خنست فصلى رسول الله ﷺ فلما انصرف قال لي ما شأني أجعلك حذائي فتخنس فقلت يا رسول الله أوينبغي لأحد أن يصلي حذاءك وأنت رسول الله الذي أعطاك الله قال فأعجبته فدعا الله لي أن يزيدني علما وفهما قال ثم رأيت رسول الله ﷺ نام حتى سمعته ينفخ ثم أتاه بلال فقال يا رسول الله الصلاة فقام فصلى ما أعاد وضوءا
Its isnad is sahih, and it is in Majma al-Zawaid 8:284, where he said, Ahmad narrated it, and its narrators are the narrators of the Sahih. See also 2572, 2602, 3033, 3490."Khanasat" means it shrank back and withdrew, from the pattern of the verbs "daraba" and "nasara."