The Messenger of Allah said, “When a morsel of any of you falls, he should pick it up and remove any of the dirt on it and then eat it, and should not leave it for Shaitaan...” [Sahih Muslim]
Eating a piece of food that falls on the floor. If a piece of food falls on the floor, then the person eating should remove any dirt that gets onto it and eat it; he should not leave it for the Shaytaan, because he does not know where the blessing is in his food; it may be in the piece that fell, and leaving it makes a person miss out on the blessing of the food. Anas ibn Maalik narrated that when the Messenger of Allaah (peace and blessings of Allaah be upon him) ate, he would lick his three fingers. Anas said: “And he said, ‘If any one of you drops a piece of food, let him remove any dirt from it and eat it, and not leave it for the Shaytaan.’ And he commanded us to clean the plate, and said, ‘For you do not know where in your food the blessing is.’” (Narrated by Muslim, 2034)
In Sahih Muslim, Hadrat Jabir radiallahu anhu relates that the Prophet sallallahu alayhe wasallam said “Shaytan is ever present in all you attempt. At the time you eat, he is there too. Therefore, if a morsel falls down and something attaches to it, clean it off and eat it and do not leave it for Shaytan and when you have completed your meal, lick your fingers because one never knows which part of the meal contains the barakah.”
Ibn Maajah reports from Hadrat Hasan Basri rahmatullahi alayhe who relates that Hadrat Mu’qil ibn Yasaar radiallahu anhu was eating when a morsel fell from his hand. He picked it up, cleaned and ate the morsel. On seeing this, the unlearned around him indicated with their eyes to each other (that his action was lowly and disliked). Someone said “May Allah do good for my Commander…”, Hadrat Mu’qil ibn Yasaar radiallahu anhu was in the position of a Commander and Chief among them, “…these unlearned people are indicating to each other that you have picked up a fallen morsel despite there being plenty of food in front of you.” He replied, “I cannot leave that which I have heard from my Beloved Prophet sallallahu alayhe wasallam because of these ‘Ajamis (non-Arabs). We were commanded that if a morsel were to fall that we should clean it and eat it and not leave it for Shaytan.”
Ibn Maajah reports that the Mother of the Believers Hadrat ‘Aisha radiallahu anha relates that the Prophet sallallahu alayhe wasallam entered his home and found a piece of bread on the floor. He sallallahu alayhe wasallam picked it up, cleaned it and ate it then said “O ‘Aisha, honor good things because once this leaves a nation, it never returns.” meaning that rizq (sustenance) does not return to a nation of ingrates.
Tabarani reports from Hadrat ‘Abdullah ibn Umm Haraam radiallahu anhu relates that the Prophet sallallahu alayhe wasallam said “Honor bread as it is from the barakaat (blessings) of the sky and the Earth. The one who eats the fallen food of the tablecloth (traditionally spread on the floor where people eat) will have his sins forgiven.”
As we can see, some people detested the idea and found it to be direspectful, but the Sunnah will always prevail.
And as we know, science likes to challenge everything Islam teaches only to fail and agree. But when they agree, they make it out as if it's a breakthrough.
‘Five-second rule’ for food dropped on the floor approved by germ scientists
Expert Professor Anthony Hilton says morsels swiftly retrieved from ground are safe to eat
Germ expert Professor Anthony Hilton, from Aston University, said that although retrieving these morsels can never be completely without risk, there is little to be concerned about if the food is only there momentarily.
Professor Hilton will be demonstrating how the five-second rule works at The Big Bang Fair – a celebration of science, technology, engineering and maths (STEM) for young people – which opens on Wednesday at the NEC in Birmingham.
He said: “Eating food that has spent a few moments on the floor can never be entirely risk-free.
“Obviously, food covered in visible dirt shouldn't be eaten, but as long as it's not obviously contaminated, the science shows that food is unlikely to have picked up harmful bacteria from a few seconds spent on an indoor floor.
“That is not to say that germs can't transfer from the floor to the food.
“Our research has shown that the nature of the floor surface, the type of food dropped on the floor and the length of time it spends on the floor can all have an impact on the number that can transfer.”
It comes as a survey of 2,000 people found 79 per cent admitted to eating food that had fallen on the floor.
Paul Jackson, chief executive of EngineeringUK, organisers of The Big Bang Fair, said: “This is a simple example of how science is present in everyday life.
“From testing how safe food is to inventing new food and drink, the limits of how we can apply science and engineering are endless.”