It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that he said: I heard the Messenger of Allah (peace and blessings be upon him) say: "Indeed, I know the last man of my Ummah who will cross the Sirat; he will writhe on the Sirat just like a boy when his father beats him," then he (peace and blessings be upon him) mentioned something similar.
Hadith Referenceالمعجم الكبير للطبراني / باب الصاد / 7639