Riyad as-Salihin, Book 9, Hadith 1030 (In-Book) ⓘ

Abu Hurairah (May Allah be pleased with him) reported that the Messenger of Allah said, "Shall I not tell you something by which Allah effaces the sins and elevates ranks (in Jannah)?" The Companions said; "Certainly, O Messenger of Allah." He said, "Performing the Wudu' thoroughly in spite of difficult circumstances, walking with more paces to the mosque, and waiting for the next As- Salat (the prayer) after observing Salat; and that is Ar-Ribat, and that is Ar-Ribat."[Muslim].

وعنه أن رسول الله صلى الله عليه وسلم قال ألا أدلكم على ما يمحو الله به الخطايا ويرفع به الدرجات قالوا بلى يارسول الله قال‏:‏ ‏ "‏إسباغ الوضوء على المكاره، وكثرة الخطا إلى المساجد، وانتظار الصلاة بعد الصلاة، فذلكم الرباط، فذلكم الرباط‏" ‏ ‏(‏‏(‏رواه مسلم‏)‏‏)‏‏.‏