hi mate, it will take at least 7 days to start growing roots, chances are its a thick stem and this is supporting the plant, it is hard to root in soil without some rooting gel or powder, but id say the only chance you have is if you make a dome to cover the clone, it will slowly wilt and die, so get a 2ltr pop bottle and cut it so the top is slightly taller than the cutting or clone, then place it over the cutting creating a sealed dome over the cutting, this can be pushed into the soil slightly to make it keep humid, all i do is put my cuttings in small pots, dipped in rooting gel, i then cut the top off a 2ltr pop bottle and place it over the cuttings, then 2 or 3 times a day i mist the clone with a spray bottle and just normal tap water, then i mist inside the dome so it keeps it humid, what you dont want to do is keep watering the soil the cutting is in, keep the soil slightly moist by spraying it but you dont want to water it like you waould water a plant, doing this will stop roots growing as quick,
the idea is to spray the cutting with water and inside the dome with water, this creates a humid condition that keeps the plant alive, then this ecourages roots to grow as the plant is still alive so it pushes out roots, id take off any big leaves that are below the top of the cutting as these will use up the moisture to quick and take longer to root.
so id get a 2 ltr pop bottle and cut the top off so this top is big enough to go over the clone and it creates a humid seal, once you have done this take off any big leaves on the cutting or cut the fingers in half so the leaf is a lot shorter, then get a spray bottle with a fine mist and spray the cutting and the inside of the dome 2 or 3 times a day and have it under constant light, doing this will give you the best chance to get it growing roots, not having this dome will cause the cutting to die as it has no roots to take in water at this stage, this is why cloners either have a dome or spray water over the stem,.
so give that a try and you may find you will get roots in 7 to 14 days time, but id leave the dome on for at least a week or possibly 2 weeks to be on the safe side, make sure you mist the cutting and the dome at least 2 times a day, dont water the soil as you would with a plant as this will slow root development down, so just spray the leaves and the inside of the dome then put the dome over the cutting and it should steam up, this shows us its working and keep humidity as near to 100% as possible, without the dome it will die within days,