Use your hands/tongue/heart for modifying wrongdoings .

This hadith speaks about how one can show their faith in Allah through their actions. It encourages people to use their hands to modify any wrongdoings they see around them. If they don't have the physical strength for this task, they can use their tongues instead by speaking out against such acts or even just abhorring them from within their hearts which is considered the least form of faith. This hadith teaches us that we must always strive to make our environment better by correcting any wrongs we come across no matter how small or insignificant they may seem at first glance. It also reminds us that even if we cannot physically change something ourselves, we still have a responsibility towards our society and must speak up against injustice whenever possible in order to make a difference in our world today.