Al-Adab Al-Mufrad #1017

Abu Hurayra reported that the Messenger of Allah, may Allah bless him and grant him peace, forbade people to sit in courtyards and roads. The Muslims said, "We will not be able to avoid it. We cannot undertake it." He said, "If not, then give it its due." They said, "What is it due?" He said, "Lower the eye, guide the traveller, wish for mercy on the person who sneezes when he praises Allah and return the greeting."