Arabic (Original)
حَدَّثَنَا سُفْيَانُ عَنِ الْعَلَاءِ عَنْ أَبِيهِ عَنْ أَبِي هُرَيْرَةَ يَرْفَعُهُ إِذَا تَثَاءَبَ أَحَدُكُمْ يَضَعُ يَدَهُ عَلَى فِيهِ.
English Translation
The Prophet (peace be upon him) said: 'When one of you yawns, let him place his hand over his mouth.'