Hadith about Wudu in English:
Narrated Abu Huraira (may Allah be pleased with him): The Messenger of Allah (peace be upon him) said, “The prayer of none amongst you would be accepted in a state of impurity until he performs ablution (wudu).” (Sahih Muslim: Book 2, Hadith 225)
Hadith about Wudu in Arabic:
حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ حَدَّثَنَا الْمَسْعُودِيُّ، عَنْ مُحَمَّدِ بْنِ إِبْرَاهِيمَ، عَنْ أَبِي سَلَمَةَ، عَنْ أَبِي هُرَيْرَةَ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ “ لاَ يُقْبَلُ صَلاَةُ أَحَدِكُمْ إِذَا أَحْدَثَ حَتَّى يَتَوَضَّأَ ” .
(Sahih Muslim: Book 2, Hadith 225)
