Hadith on Wudu: Ablution is required before performing prayer

Abu Huraira reported: The Messenger of Allah, peace and blessings be upon him, said, “Prayer is not accepted from one in a state of minor impurity (hadath) until he renews ablution.”

A man from Hadhramaut said, “Abu Huraira, what is minor impurity?” Abu Huraira said, “It is passing wind or gas.”

Source: Ṣaḥīḥ al-Bukhārī 135, Ṣaḥīḥ Muslim 225

Grade: Muttafaqun Alayhi (authenticity agreed upon) according to Al-Bukhari and Muslim

عَنْ أَبِي هُرَيْرَةَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ لَا تُقْبَلُ صَلَاةُ مَنْ أَحْدَثَ حَتَّى يَتَوَضَّأَ

قَالَ رَجُلٌ مِنْ حَضْرَمَوْتَ مَا الْحَدَثُ يَا أَبَا هُرَيْرَةَ قَالَ فُسَاءٌ أَوْ ضُرَاطٌ

135 صحيح البخاري كتاب الوضوء باب لا تقبل صلاة بغير طهور

225 صحيح مسلم كتاب الطهارة باب وجوب الطهارة للصلاة