Abu Hurairah reported,

I heard the Messenger of Allah ﷺ say, "There were two men among the Children of Israil who were like brothers to one another. One of them used to commit sins, while the other was diligent in worship. The devout one kept seeing the other committing sins and would say to him, 'Stop.'One day he found him committing a sin and said to him, 'Stop.'The man replied, 'Leave me alone with my Lord. Have you been sent as a watcher over me?'The devout one said, 'By Allah, Allah will not forgive you,' or, 'Allah will not admit you to Paradise.'Then Allah took their souls, and they gathered before the Lord of the Worlds. He said to the devout one, 'Did you have knowledge of Me, or did you have power over what is in My hand?'And He said to the sinner, 'Go and enter Paradise by My mercy.'And He said concerning the other, 'Take him to the Fire.'"Abu Hurairah said, "By the One in whose hand my soul is, he uttered a single word that destroyed both his world and his Hereafter."

عن أبي هريرة

سمعت رسول الله ﷺ يقول: كان رجلان بني إسرائيل متواخيين، فكان أحدهما يذنب، والآخر مجتهد في العبادة، فكان لا يزال المجتهد يرى الآخر على الذنب فيقول: أقصر، فوجده يوما على ذنب فقال له: أقصر، فقال: خلني وربي أبعثت علي رقيبا؟ فقال: والله لا يغفر الله لك، أو لا يدخلك الله الجنة، فقبض ارواحهما، فاجتمعا عند رب العالمين فقال لهذا المجتهد: أكنت بي عالما، أو كنت على ما في يدي قادرا؟ وقال للمذنب: اذهب فادخل الجنة برحمتي، وقال للآخر: اذهبوا به إلى النار قال أبو هريرة: والذي نفسي بيده لتكلم بكلمة أوبقت دنياه وآخرته.