"Beware! Avoid sitting on the roadsides." The people said, "O Messenger of Allah! We have no alternative but to sit there and talk." The Prophet (PBUH) said, "If you must sit, then fulfill the rights of the road." They asked, "What are the rights of the road?" He said, "Lowering the gaze (avoiding looking at forbidden things), not harming people, responding to greetings, enjoining good, and forbidding evil."