The Prophet ﷺ said: Snuff up water freely unless you are fasting. (Using translation from Abū Dāʾūd 2366)   

قَالَ رَسُولُ اللهِ ﷺ إِذَا اسْتَنْشَقْتَ فَبَالِغْ إِلَّا أَنْ تَكُونَ صَائِمًا  

[Machine] He came to the Prophet ﷺ and mentioned things, so the Prophet ﷺ said to him, "Make your ablution thoroughly, alternate between your fingers, and when you rinse your nose, do it thoroughly unless you are fasting."  

أَنَّهُ أَتَى النَّبِيَّ ﷺ فَذَكَرَ أَشْيَاءَ فَقَالَ لَهُ النَّبِيُّ ﷺ «أَسْبِغِ الْوُضُوءَ وَخَلِّلِ الْأَصَابِعَ وَإِذَا اسْتَنْشَقْتَ فَبَالِغْ إِلَّا أَنْ تَكُونَ صَائِمًا»  

[Machine] He came to the Prophet ﷺ and mentioned something, so the Prophet ﷺ said, "Perform Wudu' thoroughly and separate your fingers."  

أَنَّهُ أَتَى النَّبِيَّ ﷺ فَذَكَرَ شَيْئًا فَقَالَ النَّبِيُّ ﷺ «أَسْبِغِ الْوُضُوءَ وَخَلِّلِ الْأَصَابِعَ»  

[Machine] I came to the Prophet and he said, "Perform the ablution (wudu') well and make sure to clean between the fingers and when you do the nasal inhalation (istinshaq), then do it thoroughly unless you are fasting." "And they are considered one word."  

أَتَيْتُ النَّبِيَّ ﷺ فَقَالَ «أَسْبِغِ الْوُضُوءَ وَخَلِّلِ الْأَصَابِعَ وَإِذَا اسْتَنْشَقْتَ فَبَالِغْ إِلَّا أَنْ تَكُونَ صَائِمًا» «وَلَفْظُهُمَا وَاحِدٌ»  

[Machine] The Messenger of Allah ﷺ said to me, "Trim your fingernails, perform ablution thoroughly, and when you rinse your nose, do so excessively unless you are fasting."  

قَالَ لِي رَسُولُ اللهِ ﷺ خَلِّلْ أَصَابِعَكَ وَأَسْبِغِ الْوُضُوءَ وَإِذَا اسْتَنْشَقْتَ فَبَالِغْ إِلَّا أَنْ تَكُونَ صَائِمًا  

From his father who said: "I said. 'O Messenger of Allah! Inform me about Wudu.' So he said: "Perform Wudu well, and go between the fingers, and perform Istinshaq extensively except when fasting." (Using translation from Tirmidhī 788)   

" أسْبِغْ الوضوءَ، وخلِّلْ بين الأصابعِ، وبالغْ في الاستنشاق إلا أن تكون صائمًا".