Usama bin Zayd reported,
I said, "Messenger of Allah, I have not seen you fast in any month as much as you fast in Shaban."He replied, "That is a month people neglect, between Rajab and Ramadan. It is a month in which deeds are raised up to the Lord of the Worlds, and I love for my deeds to be raised while I am fasting."
Azami 275
Hasanعن أسامة بن زيد قال
قلت: يا رسول الله لم أرك تصوم شهرا من الشهور ما تصوم من شعبان؟ قال: ذلك شهر يغفل الناس عنه بين رجب ورمضان وهو شهر ترفع فيه الأعمال إلى رب العالمين، فأحب أن يرفع عملي وأنا صائم.
Nasai (2357) narrated it from Amr bin Ali, from Abdul-Rahman, who said, Thabit bin Qays Abu Ghusn, a shaykh from the people of Madinah, narrated to us, saying, Abu Saeed Maqburi narrated to me, saying, Usama bin Zayd narrated to me, and he related it.Imam Ahmad (21753) also narrated it from Abdul-Rahman bin Mahdi, from Thabit bin Qays, and he added in his hadith, "I said, 'Monday and Thursday?' He said, 'Those are two days on which deeds are presented to the Lord of the worlds, and I like my deeds to be presented while I am fasting.'"Its chain of transmission is hasan because of Thabit bin Qays, for his hadith is hasan.