Hi and welcome to the forum!
Usually, when there is a sticky substance on a plant, it means some sort of tiny insect.
In order for me to figure out what the problem is, please describe exactly how much sticky stuff there is. Also, did you summer the bulb outside or did it remain inside all summer? How long has it been growing this season and how long are the leaves? Is it on all of the leaves or just one or two? Do you see any cob webs or other signs of insects like cottony white blobs or dusty white or gray spots or small dark spots? Look the plant over carefully and be sure everything looks ok. Is the bulb stalk growing and is it sticky also?
Once I hear all the info you can give me, I will do further research. In the meantime, gently wash the sticky stuff off with water, but be careful not to get the water inside the bulb (turn it sideways and run it under slightly warm water and gently wipe the sticky stuff off with your fingers or a cotton ball). If you get water inside the bulb, it will rot, so be very careful. If it turns out to be an insect, hopefully, you have caught it quickly enough and can get rid of it - I just need to do a little research first.