Is it Sunnah to be in an abluted state all the time?

السلام‌عليكم، I want to know whether it Sunnah to be in an abluted state all the time? I mean in a state that one can offer salah. For example, when ablution is invalidated, one immediately renews it. I searched web but didn't find anything for my answer. Some hadiths may be found that answers it as 'yes' but these hadiths should be from As-Sahihain (Sahih Al-Bukhari and Sahih Al-Muslim) as we cannot follow a doubtful hadith. This is something people recommend but I cannot accept it unless it is verified. As Allah commands >"And do not follow a thing about which you have no knowledge..." [17:36] and >"...Say, Bring your proof, if you are truthful. [2:111] Thanks.