What are the six rights of a muslim over another?

The Shahada, bearing witness that there is no god except Allah and that Prophet Muhammad pbuh is His Messenger.

Book 026, Number 5379:

Abu Huraira reported Allah’s Messenger (may peace be upon him) as saying:

Six are the rights of a Muslim over another Muslim. It was said to him: Allah’s Messenger, what are these? Thereupon he said: When you meet him, offer him greetings;when he invites you to a feast accept it. when he seeks your council give him, and when he sneezes and says:” All praise is due to Allah,” you say Yarhamuk Allah (may Allah show mercy to you) ; and when he fails ill visit him; and when he dies follow his bier.

Translation of Sahih Muslim, Book 26:

The Book on Salutations and Greetings (Kitab As-Salam)