The Prophet Muhammad salla Allahu alayhi wasallam said, “And your smiling in the face of your brother is charity, your removing of stones, thorns, and bones from people’s paths is charity, and your guiding a man gone astray in the world is charity for you.” [Sahih at-Tirmithi] So the next time you pass by a sister – whether you know her or not – smile, and spread the greetings of peace!