Narrated Abu Huraira:
The Prophet (sallallahu alayhi wa salam) (May peace and blessings be upon him) said, "The Imam is to be followed. Say the Takbir when he says it; bow if he bows; if he says 'Sami a-l-lahu Liman hamida', say, ' Rabbana wa-laka-l-hamd', prostrate if he prostrates and pray sitting altogether if he prays sitting."
{Sahih Bukhari, Book 12, Number 701}
Narrated Abu Huraira:
The Prophet (sallallhu alayhi wa salam) said, "Whoever believes in Allah and the Last Day, should not hurt his neighbor and whoever believes in Allah and the Last Day, should serve his guest generously and whoever believes in Allah and the Last Day, should talk what is good or keep quiet."
{Volume 8, Book 73, Number 158, Sahih Bukhari}
Allah's Messenger, sal Allahu alayhi wa sallam, said:
"If Allah loves someone He calls (angel) Jibreel and says: I love so-and-so, so you love him. Jibreel loves him, and calls the other angels in Heaven to love that person. They love him, then his love will be made upon earth, and he becomes loved.
"And if Allah hates someone He calls Jibreel and says: I hate so-and-so and you hate him. Jibreel hates him and calls the angels in Heaven and says: Allah hates so-and-so, so you all hate him. They all hate him, and his hatred is made upon earth and he becomes hated."
(Sahih Muslim)