Hadith (Ahadith) Regarding the Month of Ramazan:

Hadith No. 01
Why the name 'Ramazan'?
Holy Prophet Muhammad (peace be upon him and his progeny) said: "Surely, the month of Ramazan has been named so because it scorches away the sins." Kanz al-Ummal, H: 23688

Hadith No. 02
Ramazan: The Name of God
Imam Sadiq (A.S.) has said: Say not, "This is Ramazan" and "Ramazan has departed" and "Ramazan has arrived" for surely, Ramazan is one of the names of Allah, The Mighty, the Glorious, who neither arrives nor departs. Surely, arrives and departs that, which is ephemeral, Instead say: "The month of Ramazan". Al-Kafi, 4, pg. 70

Hadith No. 03
Ramazan: The Month of Revelation of the Holy Quran
Imam Reza (A.S.) has said: If one asks, "Why is it that the fasts were made obligatory exclusively in the month of Ramazan and not in the other months?" it would be said, "(this is) because the month of Ramazan is the month in which Allah, the Exalted, had revealed the Holy Quran." Bihar al-Anwar, vol. 18, pg. 190

Hadith No. 04
Reward for Recitation of the Holy Quran during Ramazan
Imam Reza (A.S.) has said: "Someone who recites one verse from the Book of Allah, The Mighty, The Glorious, in the month of Ramazan, is like one who has recited the entire Holy Quran in the other months." Bihar al-Anwar, vol. 93, pg. 344

Hadith No. 05
Reward of the Month of Ramazan
Holy Prophet Muhammad (peace be upon him and his progeny) was asked: O' Prophet of Allah! Which of the two months possesses a greater reward, Rajab or the month of Ramazan? Holy Prophet Muhammad (peace be upon him and his progeny) replied: Nothing can be compared to the month of Ramazan in terms of reward. Bihar al-Anwar, vol. 97, pg. 49