Alqama and Aswad reported,

We came to Abdullah bin Masud at his house, and he asked, "Have those people prayed behind you?"We replied, "No."He said, "Then stand and pray." He did not instruct us to make the call to prayer or the iqamah.We went to stand behind him, but he took us by the hands and placed one of us on his right and the other on his left.When he bowed, we placed our hands on our knees, but he struck our hands away, joined his palms together, and placed them between his thighs.After he finished praying, he said, "There will come over you rulers who will delay the prayer past its appointed time and squeeze it until only the briefest moment remains before sunset, like the time of the dead. When you see them doing this, pray the prayer at its proper time and treat your prayer with them as a voluntary one. When you are three, pray together. When you are more than that, let one of you lead. When one of you bows, let him spread his forearms on his thighs, lean forward, and join his palms together. It is as if I can see the spreading of the fingers of the Messenger of Allah ﷺ," and he showed them.In another narration, "It is as if I can see the spreading of the fingers of the Messenger of Allah ﷺ while he was bowing."

Azami 2044

Sahih

عن الأسود وعلقمة قالا

أتينا عبد الله بن مسعود في داره فقال: أصلى هؤلاء خلفكم؟ فقلنا: لا، قال: فقوموا فصلوا، فلم يأمرنا بأذان ولا إقامة، قال: وذهبنا لنقوم خلفه، فأخذ بأيدينا فجعل أحدنا عن يمينه، والآخر عن شماله، قال: فلما ركع وضعنا أيدينا على ركبنا، قال: فضرب أيدينا، وطبق بين كفيه، ثم أدخلهما بين فخذيه، قال: فلما صلى قال: إنه سيكون عليكم أمراء يؤخرون الصلاة عن ميقاتها، ويخنقونها إلى شرق الموتى، فإذا رأيتم قد فعلوا ذلك فصلوا الصلاة لميقاتها، واجعلوا صلاتكم معهم سبحة، وإذا كنتم ثلاثة فصلوا جميعا، وإذا كنتم أكثر من ذلك فليؤمكم أحدكم، وإذا ركع أحدكم فليفرش ذراعيه على فخذيه، وليجنا وليطبق بين كفيه، فكأني أنظر إلى اختلاف أصابع رسول الله ﷺ فأراهم. وفي رواية: فكأني أنظر إلى اختلاف أصابع رسول الله ﷺ وهو راكع.

الأعظمي 2044صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Prayer
Chapter
Ruku and sujud
Section
Description of ruku
Numbering
Jami al-Kamil 2044 (2nd edition)
Azami 2044