Abu Salama bin Abdul-Rahman bin Awf reported,

I asked him, "Will you not narrate to me a hadith from your father, one that your father heard directly from the Messenger of Allah ﷺ?"He said to him that Ramadan was approaching, and the Messenger of Allah ﷺ said, "Ramadan is a month in which Allah عز وجل has made fasting obligatory, and I have made standing in prayer during its nights a sunnah for the Muslims. Whoever fasts it out of faith and seeking reward will emerge from his sins as on the day his mother bore him."

Ahmad 1688

Daif

حدثنا سريج بن النعمان حدثنا نوح بن قيس عن نصر بن علي الجهضمي عن النضر بن شيبان الحداني

عن أبي سلمة بن عبد الرحمن قال

قلت له ألا تحدثني حديثا عن أبيك سمعه أبوك من رسول الله ﷺ فقال له أقبل رمضان فقال رسول الله ﷺ إن رمضان شهر افترض الله عز وجل صيامه وإني سننت للمسلمين قيامه فمن صامه إيمانا واحتسابا خرج من الذنوب كيوم ولدته أمه

أحمد 1688ضعيف
Contents
Reference
Commentary
Ayat
Collection
Musnad Ahmad
Book
Abdul-Rahman bin Awf Zuhri
Numbering
Darussalam 1688
Ahmad 1688