I was in a house where Utba bin Farqad was present, and I wanted to relate a hadith. But there was a man from among the companions of the Prophet ﷺ who seemed more entitled to narrate than I was, so the man narrated from the Prophet ﷺ, who said, "During Ramadan, the gates of heaven are opened, the gates of Hell are closed, and every rebellious devil is chained up. A caller calls out every night, 'Seeker of good, come forward. Seeker of evil, hold back.'"
أخبرنا محمد بن بشار قال حدثنا محمد قال حدثنا شعبة عن عطاء بن السائب
كنت في بيت فيه عتبة بن فرقد فأردت أن أحدث بحديث وكان رجل من أصحاب النبي ﷺ كأنه أولى بالحديث مني فحدث الرجل عن النبي ﷺ قال في رمضان تفتح فيه أبواب السماء وتغلق فيه أبواب النار ويصفد فيه كل شيطان مريد وينادي مناد كل ليلة يا طالب الخير هلم ويا طالب الشر أمسك
[Its chain of transmission is hasan]. Ahmad narrated it in 4/312–313 from Muhammad bin Jafar Ghundar with this wording, and it is also found in Kubra, hadith no. 2418, where Nasai said, "This hadith of Shuba is more likely to be correct."The man is a companion, as shown by Ahmad's narration in 4/312, "Hold back."