The Messenger of Allah ﷺ said, "Whoever taunts his brother for a sin will not die until he himself commits it." Ahmad added, "A sin from which he has already repented."
حدثنا أحمد بن منيع حدثنا محمد بن الحسن بن أبي يزيد الهمداني عن ثور بن يزيد عن خالد بن معدان
قال رسول الله ﷺ من عير أخاه بذنب لم يمت حتى يعمله قال أحمد من ذنب قد تاب منه
No references are available.
[Its chain is daif]. Ibn Adi narrated it in 6/2181 through Ahmad bin Mani, from Muhammad bin Hasan bin Abu Yazid. Muhammad bin Hasan bin Abu Yazid is daif (Taqrib), and the report is disconnected.