Judaism, Talmud, Shabbat 31a
"What is hateful to you, do not do to your neighbor: that is the whole Torah; all the rest of it is commentary; go and learn."

Judaism & Christianity, Bible, Leviticus 19:18
"You shall love your neighbor as yourself."

Christianity,Bible,Matthew 7:12
"Whatever you wish that men would do to you, do so to them."

Islam, Forty Hadith of an-Nawawi 13
"Not one of you is a believer until he loves for his brother what he loves for himself."

Jainism, Sutrakritanga 1.11.33
"A man should wander about treating all creatures as he himself would be treated."

Hinduism, Mahabharata, Anusasana Parva 113.8
"One should not behave towards others in a way which is disagreeable to oneself. This is the essence of morality."

Confucianism, Analects 15.23
"It is the word shu--reciprocity: Do not do to others what you do not want them to do to you."

Buddhism, Sutta Nipata 705
"Comparing oneself to others in such terms as 'Just as I am so are they, just as they are so am I,' he should neither kill nor cause others to kill."

Christianity, Bible, Matthew 22:36-40
"You shall love the Lord your God with all your heart, and with all your soul, and with all your mind. This is the great and first commandment. And a second is like it, You shall love your neighbor as yourself. On these two commandments depend all the law and the prophets."