Sayyiduna Jabir (may Allah be pleased with him) reported about the Prophet (peace and blessings be upon him): He used to offer prayer on a mat.
Bazzar recorded it; its chain contains a narrator, al-Hajjaj bin Artah, about whom there is disagreement.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2268