Tafsir of Ash-Shu`ara' 26:193

Which the trustworthy Ruh has brought down. This refers to Jibril, peace be upon him. This was the view of more than one of the Salaf: Ibn Abbas, Muhammad bin Ka`b, Qatadah, Atiyyah Al-`Awfi, As-Suddi, Ad-Dahhak, Az-Zuhri and Ibn Jurayj. This is an issue concerning which there is no dispute. Az-Zuhri said, "This is like the Ayah:

قل من كان عدوا لجبريل فٳنه نزله على قلبك بٳذن الله مصدقا لما بين يديه

Say: "Whoever is an enemy to Jibril -- for indeed he has brought it down to your heart by Allah's permission, confirming what came before it...'' (2:97)