Righteousness is not that you turn your faces toward the east or the west, but [true] righteousness is [in] one who believes in Allāh, the Last Day, the angels, the Book, and the prophets and gives wealth, in spite of love for it, to relatives, orphans, the needy, the traveler, those who ask [for help], and for freeing slaves; [and who] establishes prayer and gives zakāh; [those who] fulfill their promise when they promise; and [those who] are patient in poverty and hardship and during battle. Those are the ones who have been true, and it is those who are the righteous.
Righteousness is not turning your faces east or west. It is belief, giving, prayer, and patience under hardship.
Idha akala ahadukum fa-l-ya'kul bi-yaminih, wa idha shariba fa-l-yashrab bi-yaminih, fa-inna-sh-shaytana ya'kulu bi-shimalihi wa yashrabu bi-shimalih.
When one of you eats, let him eat with his right hand. When he drinks, let him drink with his right. Satan eats with his left and drinks with his left.