Prophet (MGB) said, “O Ali! There are three things with which whoever visits God he will be of the noblest of the people. Whoever performs whatever is incumbent upon him would be of the best of the worshippers. Whoever abstains from whatever is forbidden for him to do would be of the most pious ones and whoever is content with whatever sustenance God has provided for him would be of the most needless ones.O Ali! There are three things which my followers find it hard to do: being sympathetic with their brethren during times of being wealthy; being fair with others regarding themselves and remembering God at all times. This doesn’t mean saying God’s glorifications by saying ‘Subhanallah valhamdulilah va la illaha ilallaho allaho akbar!’ No. It means to fear the Honorable the Exalted God whenever you run across a forbidden deed and abstain from doing that forbidden deed. O Ali! There is fear of insanity in three deeds: sleeping in the graveyard; walking wearing only one shoe and sleeping alone. O Ali! Associating with three groups of people will spoil the heart: associating with mean people, associating with the rich people and talking with women. O Ali! Three things would strengthen memory and fend off ailments: drinking milk; brushing the teeth and reciting the Quran. O Ali! The following three acts are due to obsession: eating clay, biting one’s nails, and chewing one’s beard. O Ali! I admonish you against three characteristics: envy, greed and haughtiness. O Ali! There are three things which would make the heart perish: listening to vain talk; going hunting, and going to the door of the king’s palace. O Ali! Life depends on three things: big house, beautiful woman, and a slim horse.’”The compiler of the book - may God increase his honor - said, “A slim horse is a thin horse whether male or female.”