The first thing which will be judged among a man's deeds on the Day of Resurrection is the Prayer. If this is in good order then he will succeed and prosper but if it is defective then he will fail and will be a loser.
MuhammadYou will not enter paradise until you have faith. And you will not complete your faith until you love one another.
MuhammadDo good deeds properly, sincerely and moderately and know that your deeds will not make you enter Paradise, and that the most beloved deed to Allah's is the most regular and constant even though it were little.
MuhammadMore harm is done by fools through foolishness than is done by evil-doers through wickedness.
MuhammadThe most miserable man in the world of those meant for Paradise will be dipped once in Paradise. Then he will be asked, "Son of Adam, did you ever face any misery? Did you ever experience any hardship?" So he will say, "No, by God, O Lord! I never faced any misery, and I never experienced any hardship."
Muhammad