This excerpt is taken from Sheikh Abu Hamza Abdul Khaliq Siddiqi's book Sahih Fazail-e-Amaal.
عن أبى هريرة، رضى الله عنه عن النبى صلى الله عليه وسلم قال: من صام رمضان إيمانا واحتسابا غفر له ما تقدم من ذنبه
It is narrated from Sayyiduna Abu Huraira (RA) that the Prophet Muhammad (PBUH) said: "Whoever fasts in Ramadan with faith and seeking reward (for the pleasure of Allah), then his previous sins will be forgiven."
Reference: Sahih Bukhari, Book of Fasting, Chapter: Whoever fasts Ramadan with faith, No: 190 - Sahih Muslim, Book of Prayer of Travelers, Chapter: Encouragement to pray in Ramadan which is Taraweeh, No: 760.
عن أبى هريرة رضي الله عنه أن رسول الله صلى الله عليه وسلم ، قال: إذا جاء رمضان فتحت أبواب الجنة، وغلقت أبواب النار ، وصفدت الشياطين .
It is narrated from Sayyiduna Abu Huraira (RA) that the Messenger of Allah (PBUH) said: "When the month of Ramadan comes, the gates of Paradise are opened, the gates of Hell are closed, and the devils are chained."
Reference: Sahih Bukhari, Book of Fasting, Chapter: Is it called Ramadan or the month of Ramadan, No: 1899 - Sahih Muslim, Book of Fasting, Chapter: Virtue of the month of Ramadan, No: 1079
Sayyiduna Sahl bin Sa’d (RA) says, the Prophet Muhammad (PBUH) said:
إن فى الجنة بابا يقال له الريان ، يدخل منه الصائمون يوم القيامة ، لا يدخل منه أحد غيرهم ، يقال: أين الصائمون؟ فيقومون لا يدخل منه أحد غيرهم فإذا دخلوا أغلق فلم يدخل منه أحد .
"There is a gate in Paradise called Al-Rayyan. Only those who fast will enter through it; no one else will enter besides them. A call will be made: 'Where are the fasting people?' They will stand up and enter through this gate, then it will be closed and no one else will enter through it."
Reference: Sahih Bukhari, Book of Fasting, Chapter: Al-Rayyan for the fasting, No: 1896 - Sahih Muslim, Book of Fasting, Chapter: Virtue of fasting: 1152.
