Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates: The Prophet (peace and blessings be upon him) used to offer prayer on a mat.
Imam Ahmad and Imam Bazzar recorded it, and Tabarani recorded it in al-Mu'jam al-Kabir and al-Mu'jam al-Awsat; he narrated these additional words in it: "And he used to prostrate on it." Imam Ahmad's narrators are the narrators of the Sahih. Imam Ahmad also recorded it with another chain whose narrators are the narrators of the Sahih; however, in that chain he mentioned that the narrator Sharik was in doubt whether this narration is reported from Sayyidah Aishah (may Allah be pleased with her) or from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2262