"The Messenger of Allah said: 'There is a devil for ablution who is called Walahan, so be on guard against the insinuating thoughts (Waswas) about water.'"  

قَالَ رَسُولُ اللَّهِ ﷺ إِنَّ لِلْوُضُوءِ شَيْطَانًا يُقَالُ لَهُ وَلَهَانُ فَاتَّقُوا وَسْوَاسَ الْمَاءِ  

A Bedouin came to the Prophet and asked him about ablution. He showed him how to perform it washing each part of the body three times. Then he said: 'This is the ablution, and whoever does more than this, has done evil, transgressed the limits and wronged himself.'"  

جَاءَ أَعْرَابِيٌّ إِلَى النَّبِيِّ ﷺ فَسَأَلَهُ عَنِ الْوُضُوءِ فَأَرَاهُ ثَلاَثًا ثَلاَثًا ثُمَّ قَالَ هَذَا الْوُضُوءُ فَمَنْ زَادَ عَلَى هَذَا فَقَدْ أَسَاءَ وَتَعَدَّى أَوْ ظَلَمَ  

"I heard Ibn 'Abbas say: 'I stayed overnight with my maternal aunt Maimunah, and the Prophet got up and performed ablution from an old water skin, and he did a brief ablution. Then I got up and did the same as he had done."  

سَمِعْتُ ابْنَ عَبَّاسٍ يَقُولُ بِتُّ عِنْدَ خَالَتِي مَيْمُونَةَ فَقَامَ النَّبِيُّ ﷺ فَتَوَضَّأَ مِنْ شَنَّةٍ وُضُوءًا يُقَلِّلُهُ فَقُمْتُ فَصَنَعْتُ كَمَا صَنَعَ  

"The Messenger of Allah saw a man performing ablution, and he said: 'Do not be extravagant, do not be extravagant (in using water).'" (Maudu')  

رَأَى رَسُولُ اللَّهِ ﷺ رَجُلاً يَتَوَضَّأُ فَقَالَ لاَ تُسْرِفْ لاَ تُسْرِفْ  

The Messenger of Allah passed by Sa'd when he was performing ablution, and he said: 'What is this extravagance?' He said: 'Can there be any extravagance in ablution?' He said: 'Yes, even if you are on the bank of a flowing river.'"  

أَنَّ رَسُولَ اللَّهِ ﷺ مَرَّ بِسَعْدٍ وَهُوَ يَتَوَضَّأُ فَقَالَ مَا هَذَا السَّرَفُ فَقَالَ أَفِي الْوُضُوءِ إِسْرَافٌ قَالَ نَعَمْ وَإِنْ كُنْتَ عَلَى نَهَرٍ جَارٍ