Abdul-Rahman bin Awf reported,

The Messenger of Allah ﷺ mentioned the month of Ramadan and gave it precedence over the other months, and he said, "Whoever stands in prayer during Ramadan out of faith and seeking reward from Allah will emerge from his sins as on the day his mother gave birth to him."Abu Abdul-Rahman said, "This is a mistake. The correct chain is Abu Salama, from Abu Hurairah, and the wording is, 'Whoever fasts it and stands in prayer during it out of faith and seeking reward from Allah.'"

Nasai 2211

Daif

أخبرنا إسحق بن إبراهيم قال أنبأنا النضر بن شميل قال أنبأنا القاسم بن الفضل قال حدثنا النضر بن شيبان عن أبي سلمة فذكر مثله وقال من صامه وقامه إيمانا واحتسابا

النسائي 2211ضعيف
Contents
Reference
Commentary
Ayat
Collection
Sunan Nasai Sughra
Book
Fasting
Chapter
Difference between Yahya bin Abu Kathir and Nadr bin Shayban regarding it
Numbering
Darussalam 2211
Nasai 2211