Abu Hurairah reported,
The Prophet ﷺ said, "Shall I not guide you to that by which Allah 
raises ranks and wipes away sins? Taking many steps to the mosques, waiting for the next prayer after the previous one, and performing wudu thoroughly despite difficulties."
Ahmad 9644
Sahihحدثنا يحيى عن شعبة قال حدثني العلاء عن أبيه
عن أبي هريرة
عن النبي ﷺ ألا أدلكم على ما يرفع الله عز وجل به الدرجات ويكفر به الخطايا كثرة الخطا إلى المساجد وانتظار الصلاة بعد الصلاة وإسباغ الوضوء على المكاره
Its isnad is sahih. Muslim narrated it, 1/219, no. 251, in the Book of Purification, on the merit of perfecting wudu despite hardship. Tirmidhi narrated it similarly, 1/72, no. 51, as did Ibn Majah, 1/148, no. 427, and Darimi, 1/189, no. 698. Ibn Khuzayma narrated it, 1/6, no. 5, and Ibn Hibban narrated it similarly, 68, no. 161.