Abu Hurairah (Radhiallahu anhu) reported,
that the Messenger of Allah (Sallallaahu ‘alaihi wasallam) 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 (Sallallaahu ‘alaihi wasallam) 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]