Whenever the Messenger of Allah ﷺ performed ablution, he took a handful of water, and, putting it under his chin, made it go through his beard, saying: Thus did my Lord command me.  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ إِذَا تَوَضَّأَ أَخَذَ كَفًّا مِنْ مَاءٍ فَأَدْخَلَهُ تَحْتَ حَنَكِهِ فَخَلَّلَ بِهِ لِحْيَتَهُ وَقَالَ هَكَذَا أَمَرَنِي رَبِّي ﷻ