Prefab Problem

Good evening!

As you can see in the following script. I am trying to only execute the trigger enter if it is in a certain time. First time when I referenced the sword object from the inspector it went well, but since when I made a prefab from the sword object it can't access the script on the sword.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class collision : MonoBehaviour
6. {
7.     public GameObject sword;
8.  
9.  
10.     private void OnTriggerEnter(Collider collider)
11.     {
12.         float slashtime = sword.GetComponent<movement>().slashtime;
13.         Debug.Log(sword );
14.         Debug.Log(slashtime);
15.        
16.         if (collider.tag == "sword" && slashtime+1f > Time.time)
17.         {
18.            
19.             Destroy(gameObject);
20.         }
21.     }
22.  
23. }
24.  

I would be really thankful for any help.