1. Hadrat Sayyiduna Abu Hurairah Radi Allahu Ta’ala Anhu reported that the Messenger of Allah (SallAllahu Alaihi wa Sallam) has said, “When Ramadan begins, the doors of heaven are opened.” A version has, “the doors of Paradise are opened and the doors of Hell are closed, and the Satans are tied with chains.” Another version has, “the doors of Mercy are opened.“ [Sahih al-Bukhari, Vol. 1, Page 255 and Sahih al-Muslim, Vol. 1, Page 346]
Hadrat Shaykh ‘Abd al-Haq Muhaddith-e-Dehlwi Alaihir raHmah comments:
The meaning of the “Doors of heaven” being opened is the continuous descending of mercy, and the ascension of good deeds to the Court of the Almighty without any obstacle (preventing it from ascending). It also means the acceptance of (permissible) supplications. The meaning of the “doors of Paradise” being opened is being encouraged and granted the ability to perform good deeds and the acceptance of these good deeds. The meaning of the “doors of Hell” being closed is the protection of the souls of those who fast, from things that have been forbidden by Islamic Law, and rescue from the things which provoke a person on doing bad deeds. It also means to break the desire that the heart has for things of lust. The meaning of Satan being tied with chains is the sealing off of all the ways by which evil whispers enter the mind. [Ashi’ah al-Lam’at]
2. Hadrat Abu Hurairah Radi Allahu Ta’ala Anhu reported that the Messenger of Allah (SallAllahu Alaihi wa Sallam) has said, “Whoever fasts during Ramadan with faith and seeking his reward (from Allah SubHanuhu wa Ta’ala) all his past sins will be forgiven. Whoever prays during the night in Ramadan with faith seeking his reward (from Allah SubHanuhu wa Ta’ala) all his past sins will be forgiven. And whoever passes Lailat-ul-Qadr in prayer with faith and seeking his reward (from Allah SubHanuhu wa Ta’ala) all his past sins will be forgiven.” [Sahih al-Bukhari Vol. 1, Page 255 and Sahih al-Muslim, Vol. 1, Page 259]
3. Hadrat Abu Hurairah Radi Allahu Ta’ala Anhu reported that the Messenger of Allah (SallAllahu Alaihi wa Sallam) has said, “When the first night of Ramadan comes, the satans and the rebellious Jinn are chained, the doors of hell are closed and not one of them is opened (during the entire the month of Ramadan); the doors of Paradise are opened and none of them are closed (for the entire month of Ramadan); and a crier calls, ‘Those who desire what is good, come forward, and those who desire evil refrain from it’, and many people are freed from Hell by Allah SubHanuhu wa Ta’ala, and that happens every night.” [Tirmidhi, Vol. 1, Page 153 and Ibn Maajah, Vol. 1, Page 118]
4. Hadrat Abu Hurairah Radi Allahu Ta’ala Anhu reported that the Messenger of Allah (SallAllahu Alaihi wa Sallam) has said, “Ramadan, a blessed month, has come to you during which Allah SubHanuhu wa Ta’ala has made it obligatory for you to fast. In it the doors of Heaven are opened, the doors of Hell are closed, and the rebellious satans are chained. In it there is a night (worshiping in it) which is better than (worshiping for) a thousand months. Whoever is deprived of its good (and blessing) has indeed been deprived of all good.” [Nasa’i, Vol. 1, Page 299 and Mishkat, Vol. 1, Page 173]