Kathir bin Sulaym said: I saw Sayyiduna Anas bin Malik (may Allah be pleased with him) prostrating on his turban.
Imam al-Tabarani recorded it in al-Mu'jam al-Kabir; the narrator Kathir bin Sulaym is da'if (weak). Ibn Hibban stated in his book "al-Thiqat": Kathir bin Sulaym narrated from al-Dahhak bin Muzahim, and Abu Tumaylah narrated from him. And he stated in his book "al-Du'afa'": Kathir bin Sulaym is the one who is called Kathir bin Abdullah; he narrated from Sayyiduna Anas (may Allah be pleased with him) things that are not from his hadith, fabricating them against him; and Allah knows best. No one other than Ibn Hibban declared him trustworthy.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2760