Sayyiduna Ibn Umar (may Allah be pleased with them both) narrates that the prostration of these people is longer than even three prostrations of the Prophet (peace and blessings be upon him). (Whereas the Imam has been commanded to show leniency.)
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 5842
Hadith Gradingحکم دارالسلام:إسناده ضعيف لضعف عطية بن سعد العوفي.