The Prophet ﷺ said, "Even if your sins were to reach the sky, were you then to repent, He would accept your repentance."
حدثنا يعقوب بن حميد بن كاسب المديني حدثنا أبو معاوية حدثنا جعفر بن برقان عن يزيد بن الأصم
عن النبي ﷺ قال لو أخطأتم حتى تبلغ خطاياكم السماء ثم تبتم لتاب عليكم
No references are available.
[Hasan] Busiri and Iraqi graded it hasan, and Munziri said its chain is good. It has a corroborating witness in Ahmad 3/238, and Haythami said, 10/215, its narrators are trustworthy.