Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Wathilah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The scriptures of Ibrahim (peace be upon him) were revealed on the first night of Ramadan, the Torah on the sixth of Ramadan, the Gospel after thirteen days of Ramadan had passed (that is, on the fourteenth), the Psalms on the twenty-ninth of Ramadan, and the Noble Qur'an after twenty-four days had passed (that is, on the twenty-fifth) of Ramadan."