As-Salaam alaikum,
Abu Hurairah, may Allah be pleased with him, reported that one day the Prophet, Sallallahu alaihi Wasallam said to his companions, "Should I not tell you something on account of which Allah may forgive you your sins and elevate your station in paradise?"
They said, "Do please tell us, O Prophet of Allah." He stated: "To perform complete ablution [wudu] in trying circumstances, to frequently traverse the distance between the house and the mosque, and after performing a prescribed prayer to wait for the next. This is like manning the frontiers of Islam." ​ (Tirmidhi)