Reference
ID 1278
Collector Muslim ibn al-Hajjaj
Book Sahih Muslim
Chapter The Book of Prayers
Reference (English Book) Book 4, Hadith 859
Reference (Arabic Book) Book 5, Hadith 125
Hadith Type Atar
Matn (English)

Abu Huraira reported: The Messenger of Allah (may peace be upon him) said: Does the man who lifts his head ahead of the Imam (from prostration) not fear that Allah may change his head into the head of an ass?

Matn (Arabic)

حَدَّثَنَا خَلَفُ بْنُ هِشَامٍ، وَأَبُو الرَّبِيعِ الزَّهْرَانِيُّ، وَقُتَيْبَةُ بْنُ سَعِيدٍ، كُلُّهُمْ عَنْ حَمَّادٍ، - قَالَ خَلَفٌ حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، - عَنْ مُحَمَّدِ بْنِ زِيَادٍ، حَدَّثَنَا أَبُو هُرَيْرَةَ، قَالَ قَالَ مُحَمَّدٌ صلى الله عليه وسلم ‏ "‏ أَمَا يَخْشَى الَّذِي يَرْفَعُ رَأْسَهُ قَبْلَ الإِمَامِ أَنْ يُحَوِّلَ اللَّهُ رَأْسَهُ رَأْسَ حِمَارٍ ‏"‏ ‏.‏