It is narrated from Hazrat Wathilah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "The scriptures of Hazrat Ibrahim (peace be upon him) were revealed on the first night of Ramadan, the Torah on the sixth of Ramadan, the Gospel on the thirteenth, and the Qur'an was revealed on the twenty-fourth of Ramadan."
Hadith Referenceمسند احمد / مسند الشاميين / 16984
Hadith Gradingحکم دارالسلام:إسناده ضعيف لجهالة حال الغريف بن عياش