Jābir ibn ‘Abdullāh (may Allah be pleased with him) reported from the Prophet (may Allah's peace and blessings be upon him) some of the manners of eating, including the following: - When one finishes his meal, he should lick his fingers and wipe his plate clean until there is no trace of food on it, in order not to miss any of the blessing of the food which could be in any part of it. If a morsel of food falls on the ground, he should not leave it, because the devil accompanies the son of Adam in all of his affairs. If a morsel of food falls, the devil takes it, but we do not see him as this is a matter of the unseen world. However, we know about it through the words of our truthful Prophet (may Allah’s peace and blessings be upon him). The devil takes this fallen food and eats it, even if we still see it before us; he eats it in a manner unseen to us. This is one of the matters of the unseen that we must believe in.