From Abi Sa’eed al-Khudri [رضي الله عنه] who said the Messenger of Allāh [ﷺ] said:

❝Indeed Allāh [تبارك و تعالى] frees slaves every day and night – meaning: in Ramaḍān – and indeed every Muslim, on every day and night, has a supplication which is answered.❞

● [Collected By al-Bazzar | Al-Albaani Declared It Saheeh lighayrihi In ‘Saheeh Targheeb Wa Tarheeb’, (1/1002)]