Sayyiduna Abdullah bin Amr (may Allah be pleased with him) said: The Throne is encircled by a serpent, and the revelation descends in chains.
Al-Tabarani recorded it, and its narrators are the narrators of the Sahih, except Kathir bin Abi Kathir, who is thiqah (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدب / 13384