Abu Hurayra reported that the Messenger of Allah, may Allah bless
him and grant him peace, said, "The person riding greets the person walking.
The person walking greets the person sitting. The small group greets the
large group."
'Abdu'r-Rahman ibn Shibl said that he heard the Prophet, may Allah
bless him and grant him peace, said, "The person riding should greet the
person on foot. The person on foot should greet the person who is seated.
The smaller group should greet the large. Whoever answers the greeting,
that is for him. Whoever does not answer it, has nothing."
Abu Hurayra said, "I heard the Messenger of Allah, may Allah bless
him and grant him peace, say, 'The rights a Muslim has over another Muslim
are six." He was asked, "What are they?" He replied, "When he meets him,
he should greet him, When he gives him an invitation, he should accept.
When he asks him for advice, he should give him good counsel. When he sneezes
and praises Allah, he should wish him mercy. when he is ill, he should
visit him. When he dies, he should accompany him."
