Sunan An-Nasa'i

Hadith #2102

It was narrated form Abu Hurairah that the Prophet said:""When the month of Ramadan beings, the gates of Paradise are opened. The gates of the Fire are closed and the devils are chained up."" (Sahih) Abu 'Abdur-Rahman (An-Nasai) said: This meaning, the narration of Ibn Ishaq - is a mistake. Ibn Ishaq did not hear from Az-Zuhri. What is correct is what we mentioned it previously